Home |
Search |
Today's Posts |
|
UK diy (uk.d-i-y) For the discussion of all topics related to diy (do-it-yourself) in the UK. All levels of experience and proficency are welcome to join in to ask questions or offer solutions. |
Reply |
|
|
LinkBack | Thread Tools | Display Modes |
#1
|
|||
|
|||
URGENT Leaking hot water cylinder (pressurised) HELP
Hi
My hot water cylinder is dripping, and to be honest, it looks pretty dead - huge amounts of corrosion everywhere. Sadly its not simple... I've got a pressurised water system, and the cylinder is labelled Polystel PS125 / 3 - with operating pressure of 3 bar. All the pipework goes into the to of the cylinder through a metal cap that looks like a beer bottle top. Its leaking from under there. The rust is quite evident and obvious. Photos of tank are at:- http://www.ryanandmel.com/tank1.jpg and http://www.ryanandmel.com/tank2.jpg I have no idea if its direct or indirect (don't even know what this means) - and as an avid DIY'er I know I can swap it for a like item. However, I can find nothing at all on the web about this cylinder and all the ones I can find have side entry pipes - which clearly isn't what I'm looking for. I've called 3 plumbers, and one can't quote for 3 weeks, one can't speak to me till Monday and one isn't interested. Oh what a trade! Any recommendations for plumbers in West Drayton/Uxbridge area appreciated! ANY HELP AT ALL is appreciated - this forum has been very helpful in the past - so here's hoping! Thanks! RJ |
#2
|
|||
|
|||
URGENT Leaking hot water cylinder (pressurised) HELP
First thing to do is not to panic to much and take a couple of deep breaths.
Now get all the water turned off at all the stop cocks and make sure that any water heaters are also switched off. Now looking at the pictures you've provided links too, I'd say you'd need to remove the whole top lid off that base tank and clean it all up until it shines like a new sixpence (sorry, five pence piece, same size). That tank has been leaking for many a time by the looks of all the corrosion on it, so it really needs cleaned off before any other judgement can be made on a remedy. Get all the water off, especially to the tanks, and then get back to us for more advice. If you've already calmed down and done all the water turning off thingies, then get a shifting spanner....sooorry.....an adjustable spanner and remove the nut from the elbow fitting that's nearest the door hinges and floor to the right, and you can use this as a draining point for the tank water if you put a basin or big pot, bowl or loads of towels under it. Once you've got a load of water out, then take the spanner and undo the ring band that holds the pressure vessel on top of the base tank. The bolt is facing the door, so it's clearly visible and easy to access. Now go out and buy a big wire brush and some scouring pads and clean the whole up. Once youve done that, then more than likely you'l be able to reseal the plate and tank back together no problem with some proper neoprene sealing rings. But it all has to be shiny clean. --- http://www.basecuritysystems.no-ip.com Outgoing mail is certified Virus Free. Checked by AVG anti-virus system (http://www.grisoft.com). Version: 6.0.560 / Virus Database: 352 - Release Date: 08/01/04 |
#3
|
|||
|
|||
URGENT Leaking hot water cylinder (pressurised) HELP
BigWallop wrote:
Now go out and buy a big wire brush and some scouring pads and clean the whole up. Once youve done that, then more than likely you'l be able to reseal the plate and tank back together no problem with some proper neoprene sealing rings. But it all has to be shiny clean. Do you really think it can be resealed to 5 bar tested? Safely? Not disagreeing, just curious. |
#4
|
|||
|
|||
URGENT Leaking hot water cylinder (pressurised) HELP
"The Natural Philosopher" wrote in message ... BigWallop wrote: Now go out and buy a big wire brush and some scouring pads and clean the whole up. Once youve done that, then more than likely you'l be able to reseal the plate and tank back together no problem with some proper neoprene sealing rings. But it all has to be shiny clean. Do you really think it can be resealed to 5 bar tested? Safely? Not disagreeing, just curious. Depends on how competent the OP is, although the banding does a lot of the work in pulling the two bits back together again, and as long as the correct seals are used, then it is a job that can be done by someone who's good with their hands and head (as in a bit of brain power). :-)) --- http://www.basecuritysystems.no-ip.com Outgoing mail is certified Virus Free. Checked by AVG anti-virus system (http://www.grisoft.com). Version: 6.0.560 / Virus Database: 352 - Release Date: 08/01/04 |
#5
|
|||
|
|||
URGENT Leaking hot water cylinder (pressurised) HELP
Semi tempted by this thought - but for 2 things - 1 getting the right
seal - I can't find any mention of this particular setup on the web anywhere! and 2 - the top of the cylinder looks so rusted, that if all the rust is removed and cleaned away, it'll be impossible to reseal as the cylinder is so pitted and rusted... My neighbours had theirs replaced (by their landlord) - So I'll call them and see if they can take a look - whilst on DIY issues I'd say I'm 8/10 er, I'm not at all ofay with this type of setup.... "BigWallop" wrote in message ... "The Natural Philosopher" wrote in message ... BigWallop wrote: Now go out and buy a big wire brush and some scouring pads and clean the whole up. Once youve done that, then more than likely you'l be able to reseal the plate and tank back together no problem with some proper neoprene sealing rings. But it all has to be shiny clean. Do you really think it can be resealed to 5 bar tested? Safely? Not disagreeing, just curious. Depends on how competent the OP is, although the banding does a lot of the work in pulling the two bits back together again, and as long as the correct seals are used, then it is a job that can be done by someone who's good with their hands and head (as in a bit of brain power). :-)) --- http://www.basecuritysystems.no-ip.com Outgoing mail is certified Virus Free. Checked by AVG anti-virus system (http://www.grisoft.com). Version: 6.0.560 / Virus Database: 352 - Release Date: 08/01/04 |
#6
|
|||
|
|||
URGENT Leaking hot water cylinder (pressurised) HELP
"RJ" wrote in message om... Semi tempted by this thought - but for 2 things - 1 getting the right seal - I can't find any mention of this particular setup on the web anywhere! and 2 - the top of the cylinder looks so rusted, that if all the rust is removed and cleaned away, it'll be impossible to reseal as the cylinder is so pitted and rusted... If an unvented cylinder shows signs of corrosion then ditch it. My neighbours had theirs replaced (by their landlord) - So I'll call them and see if they can take a look - whilst on DIY issues I'd say I'm 8/10 er, I'm not at all ofay with this type of setup.... "BigWallop" wrote in message ... "The Natural Philosopher" wrote in message ... BigWallop wrote: Now go out and buy a big wire brush and some scouring pads and clean the whole up. Once youve done that, then more than likely you'l be able to reseal the plate and tank back together no problem with some proper neoprene sealing rings. But it all has to be shiny clean. Do you really think it can be resealed to 5 bar tested? Safely? Not disagreeing, just curious. Depends on how competent the OP is, although the banding does a lot of the work in pulling the two bits back together again, and as long as the correct seals are used, then it is a job that can be done by someone who's good with their hands and head (as in a bit of brain power). :-)) --- http://www.basecuritysystems.no-ip.com Outgoing mail is certified Virus Free. Checked by AVG anti-virus system (http://www.grisoft.com). Version: 6.0.560 / Virus Database: 352 - Release Date: 08/01/04 --- -- Checked by AVG anti-virus system (http://www.grisoft.com). Version: 6.0.558 / Virus Database: 350 - Release Date: 02/01/2004 |
#8
|
|||
|
|||
URGENT Leaking hot water cylinder (pressurised) HELP
IMM wrote:
"RJ" wrote in message om... Semi tempted by this thought - but for 2 things - 1 getting the right seal - I can't find any mention of this particular setup on the web anywhere! and 2 - the top of the cylinder looks so rusted, that if all the rust is removed and cleaned away, it'll be impossible to reseal as the cylinder is so pitted and rusted... If an unvented cylinder shows signs of corrosion then ditch it. This is another rare occasion where I tend to agree with you :-) |
#9
|
|||
|
|||
URGENT Leaking hot water cylinder (pressurised) HELP
Andy Hall wrote:
Then don't do it. This is a cylinder of hot water at 60 degrees, stored under mains pressure - up to about about 4 bar. Really, according to Building Regulations they are supposed to be (legally speaking) installed and maintained by a plumber specifically trained on pressurised cylinders. Alternatively, you could just get the cylinder replaced with a new pressurised one. However this really is a job that is supposed to be done by a trained professional. If you were a 10/10 person on plumbing then I'd suggest that you make your own value judgment on whether to DIY, but since you say 8/10, then I would think carefully. If you get it wrong then you can create a dangerous situation. Mine was installed by a complete gibbon, and I had to help him read the instructions. It isn't quite as bad as you make out, because its cold water you fill it with. And that won't go BANG - just **** out of any joints. The standard way to pressure test a steam boiler is to fill it with water and pressurise it...for that reason.. The real danger is, if it ever boils. Thats why its equipped with safety valves and a pipe to vent steam out of. THIS is what needs to be thoroughly tested. A boiler of steam DOES explode, and is lethal. Even iof you do get a 'qualified' p[lumber to instrall it, I'd suggest reading the nstructions and cheacking up on what he does, and making sure any recommended tests are carried out. |
#10
|
|||
|
|||
URGENT Leaking hot water cylinder (pressurised) HELP
IMM & Andy
That isn't what I wanted to hear - but my head tells me you are both correct. IF I could get a plumber to even consider coming around I'd be keen to wash my hands. I can't yet get one to even quote within a month! I'll try again on Monday. Thank god the gaffer tape is holding! So as far as the pressurised tank goes - I'll leave it to the pros to fix/replace - unless I go for a heat exchanger unit. I'm happier with wiring than plumbing and have just read up on these - and think I could cope with them. Andy - you are correct about the red central-heating pressure vessel. Though not sure I understand what you mean by "In this case you have a sealed system and you would use an indirect heat bank with its own header tank built in." Without taking the pi$$ too much - do you have any make/models of tanks you think may suffice that I could research more to see if its in my capabilities? My research suggests its doable if a little complex... (Note 8/10 for DIY is my rating for other bits I've done - not directed specifically at plumbing where I'd say its a bit lower - so point taken over saftey) ALL of your help is much appreciated so far. Regards RJ (near Heathrow) Andy Hall wrote in message . .. On 11 Jan 2004 01:54:00 -0800, (RJ) wrote: Semi tempted by this thought - but for 2 things - 1 getting the right seal - I can't find any mention of this particular setup on the web anywhere! and 2 - the top of the cylinder looks so rusted, that if all the rust is removed and cleaned away, it'll be impossible to reseal as the cylinder is so pitted and rusted... My neighbours had theirs replaced (by their landlord) - So I'll call them and see if they can take a look - whilst on DIY issues I'd say I'm 8/10 er, I'm not at all ofay with this type of setup.... Then don't do it. This is a cylinder of hot water at 60 degrees, stored under mains pressure - up to about about 4 bar. Really, according to Building Regulations they are supposed to be (legally speaking) installed and maintained by a plumber specifically trained on pressurised cylinders. Normally, I will tackle anything with respect to plumbing, and I am far from being a fan of government regulation but looking at your photos, I wouldn't entertain the idea of trying to fix this cylinder. Even if you can clean it up, and it looks doubtful to me, then you would have to be very sure that it all goes back together properly. What you don't know is whether the cylinder has in other respects corroded and deteriorated. I would say that this really isn't worth the risk. If you want to DIY this, then IMM's idea of a heatbank does make sense. It would be quite easy to plumb this in, although a bit of wiring would be needed, and it has the advantage that the contents of the cylinder are not under pressure. The heat is stored in the cylinder in the form of water at low pressure and then this is pumped through an efficient heat exchanger to heat the mains water. With a vented primary system you can connect directly. I notice on yours what looks to be a small pressure vessel for the heating (red) at the corner of the picture. In this case you have a sealed system and you would use an indirect heat bank with its own header tank built in. Alternatively, you could just get the cylinder replaced with a new pressurised one. However this really is a job that is supposed to be done by a trained professional. If you were a 10/10 person on plumbing then I'd suggest that you make your own value judgment on whether to DIY, but since you say 8/10, then I would think carefully. If you get it wrong then you can create a dangerous situation. "BigWallop" wrote in message ... "The Natural Philosopher" wrote in message ... BigWallop wrote: Now go out and buy a big wire brush and some scouring pads and clean the whole up. Once youve done that, then more than likely you'l be able to reseal the plate and tank back together no problem with some proper neoprene sealing rings. But it all has to be shiny clean. Do you really think it can be resealed to 5 bar tested? Safely? Not disagreeing, just curious. Depends on how competent the OP is, although the banding does a lot of the work in pulling the two bits back together again, and as long as the correct seals are used, then it is a job that can be done by someone who's good with their hands and head (as in a bit of brain power). :-)) --- http://www.basecuritysystems.no-ip.com Outgoing mail is certified Virus Free. Checked by AVG anti-virus system (http://www.grisoft.com). Version: 6.0.560 / Virus Database: 352 - Release Date: 08/01/04 .andy To email, substitute .nospam with .gl |
#11
|
|||
|
|||
URGENT Leaking hot water cylinder (pressurised) HELP
Hi all
I've just spent ages looking at what I've got - and I think its all clicked and I understand it. The cylinder has 4 pipes (excluding pressure/temp releif) - boiler in/return; cold feed and hot out. The boiler in/return is linked via an electric valve to the heating system, so this circut is under about 2 bar pressure controlled with its own pressure vessle/release valve. So - I reckon I could loop the boiler feeds, and put a stop-cock on the cold feed and the hot water out. This would mean I could have cold water and heating and not worry about the cylinder - and okay - no hot water. In which case, I'd be 100% confident of ripping out the cylinder without doing any damage. Assuming a replacement of a vented (aka thermal storage) system - from what I've found on the web, I'd just need to connect up the right pipe to the right hole and I'd have hot water again. Is it as LOGICALLY easy as that? (I know how to de/repressurise the boiler/heating loop). Any comments welcome, and I've got a few more questions below. Don't worry about running before walking, I never jump too quickly! Also - if I'm right about the issolation bit - its okay as we don't need hot water as we can go to the local swimming pool for a swim and shower every day!!! SO I can take my time! Some questions if I may be so bold 1 - is my understanding logically okay? 2 - any recommended systems / suppliers (UB or SL area) 3 - do systems normally come with all fixings and instruction manuals!!!? 4 - a phosphor de-scaler was noted in this thread. What is this and where does it fit? 5 - whats the thing I have on the boiler feeds on the tank. Red thing with long white wire. Is it a flow switch? If so - whats it for and whats its current purpose? 6 - any recommendations for websites to look at appreciated You have all been unbelieveably helpful - and are giving me some confidence to undertake this (only replacing with the storage type!!). IF I could get a plumber I'd be happy to pay, watch and learn, but they are just so busy they aren't interested! Any comments welcome - and if you want to talk to me directly you can via my email address which is on http://www.ryanandmel.com - under PERSONAL INFORMATION. (username=jones / password=jones) THANKS AGAIN! RJ Andy Hall wrote in message . .. On 11 Jan 2004 01:54:00 -0800, (RJ) wrote: Semi tempted by this thought - but for 2 things - 1 getting the right seal - I can't find any mention of this particular setup on the web anywhere! and 2 - the top of the cylinder looks so rusted, that if all the rust is removed and cleaned away, it'll be impossible to reseal as the cylinder is so pitted and rusted... My neighbours had theirs replaced (by their landlord) - So I'll call them and see if they can take a look - whilst on DIY issues I'd say I'm 8/10 er, I'm not at all ofay with this type of setup.... Then don't do it. This is a cylinder of hot water at 60 degrees, stored under mains pressure - up to about about 4 bar. Really, according to Building Regulations they are supposed to be (legally speaking) installed and maintained by a plumber specifically trained on pressurised cylinders. Normally, I will tackle anything with respect to plumbing, and I am far from being a fan of government regulation but looking at your photos, I wouldn't entertain the idea of trying to fix this cylinder. Even if you can clean it up, and it looks doubtful to me, then you would have to be very sure that it all goes back together properly. What you don't know is whether the cylinder has in other respects corroded and deteriorated. I would say that this really isn't worth the risk. If you want to DIY this, then IMM's idea of a heatbank does make sense. It would be quite easy to plumb this in, although a bit of wiring would be needed, and it has the advantage that the contents of the cylinder are not under pressure. The heat is stored in the cylinder in the form of water at low pressure and then this is pumped through an efficient heat exchanger to heat the mains water. With a vented primary system you can connect directly. I notice on yours what looks to be a small pressure vessel for the heating (red) at the corner of the picture. In this case you have a sealed system and you would use an indirect heat bank with its own header tank built in. Alternatively, you could just get the cylinder replaced with a new pressurised one. However this really is a job that is supposed to be done by a trained professional. If you were a 10/10 person on plumbing then I'd suggest that you make your own value judgment on whether to DIY, but since you say 8/10, then I would think carefully. If you get it wrong then you can create a dangerous situation. "BigWallop" wrote in message ... "The Natural Philosopher" wrote in message ... BigWallop wrote: Now go out and buy a big wire brush and some scouring pads and clean the whole up. Once youve done that, then more than likely you'l be able to reseal the plate and tank back together no problem with some proper neoprene sealing rings. But it all has to be shiny clean. Do you really think it can be resealed to 5 bar tested? Safely? Not disagreeing, just curious. Depends on how competent the OP is, although the banding does a lot of the work in pulling the two bits back together again, and as long as the correct seals are used, then it is a job that can be done by someone who's good with their hands and head (as in a bit of brain power). :-)) --- http://www.basecuritysystems.no-ip.com Outgoing mail is certified Virus Free. Checked by AVG anti-virus system (http://www.grisoft.com). Version: 6.0.560 / Virus Database: 352 - Release Date: 08/01/04 .andy To email, substitute .nospam with .gl |
#12
|
|||
|
|||
URGENT Leaking hot water cylinder (pressurised) HELP
On 11 Jan 2004 08:00:03 -0800, (RJ) wrote:
IMM & Andy That isn't what I wanted to hear - but my head tells me you are both correct. IF I could get a plumber to even consider coming around I'd be keen to wash my hands. I can't yet get one to even quote within a month! I'll try again on Monday. Thank god the gaffer tape is holding! So as far as the pressurised tank goes - I'll leave it to the pros to fix/replace - unless I go for a heat exchanger unit. I'm happier with wiring than plumbing and have just read up on these - and think I could cope with them. Andy - you are correct about the red central-heating pressure vessel. Though not sure I understand what you mean by "In this case you have a sealed system and you would use an indirect heat bank with its own header tank built in." Your heating primary circuit is sealed and the red vessel is there to absorb the expansion of the water in that circuit as the boiler heats it. Inside it there is a diaphragm with air or nitrogen behind it. The alternative would have been an open vented system which has a small header tank open to the air typically in the loft. With a heatbank, the water in the bulk of the tank is not maintained under pressure, it is fed from some kind of header tank open to the air. If your heating system had been open vented, you could have connected the heatbank directly to the primary circuit and have the bulk water inside part of that circuit. The expansion of that water would be taken care of by the header tank. This would be called a direct heatbank since the bulk water in the heatbank cylinder also runs through the boiler. However, when you have a sealed primary system as you have, the pressure can be anything up to 3 bar and the heatbank cylinder is not designed to take that. To get around this, the heatbank can have an indirect coil (rather like your existing cylinder) and the bulk water inside is heated indirectly - the water in the coil remains part of the primary circuit and is sealed and under pressure from ther red expansion vessel. You still have to have provision for the heatbank water to expand and this is done with a header tank. You could do this by having a separate header tank in the loft, or some manufacturers (e.g. DPS) offer packaged heatbanks with the header in the top of the package immediately over the heatbank cylinder itself. With the indirect arrangement, you end up with three lots of water: - the primary circuit, under pressure as it is today and feeding an indirect coil in the heatbank. - the heatbank water, open vented and heated via the coil to 75-80 degrees rather than the 60 of the existing cylinder. - the mains water which is heated as required using the heatbank water via a heat exchanger with a separate pump to the heating pump to circulate it between heatbank and heat exchanger, Without taking the pi$$ too much - do you have any make/models of tanks you think may suffice that I could research more to see if its in my capabilities? My research suggests its doable if a little complex... If you buy a packaged heatbank it's not that bad. You should be able to hook it up to the existing plumbing quite easily. (Note 8/10 for DIY is my rating for other bits I've done - not directed specifically at plumbing where I'd say its a bit lower - so point taken over saftey) ALL of your help is much appreciated so far. Regards RJ (near Heathrow) Andy Hall wrote in message . .. On 11 Jan 2004 01:54:00 -0800, (RJ) wrote: Semi tempted by this thought - but for 2 things - 1 getting the right seal - I can't find any mention of this particular setup on the web anywhere! and 2 - the top of the cylinder looks so rusted, that if all the rust is removed and cleaned away, it'll be impossible to reseal as the cylinder is so pitted and rusted... My neighbours had theirs replaced (by their landlord) - So I'll call them and see if they can take a look - whilst on DIY issues I'd say I'm 8/10 er, I'm not at all ofay with this type of setup.... Then don't do it. This is a cylinder of hot water at 60 degrees, stored under mains pressure - up to about about 4 bar. Really, according to Building Regulations they are supposed to be (legally speaking) installed and maintained by a plumber specifically trained on pressurised cylinders. Normally, I will tackle anything with respect to plumbing, and I am far from being a fan of government regulation but looking at your photos, I wouldn't entertain the idea of trying to fix this cylinder. Even if you can clean it up, and it looks doubtful to me, then you would have to be very sure that it all goes back together properly. What you don't know is whether the cylinder has in other respects corroded and deteriorated. I would say that this really isn't worth the risk. If you want to DIY this, then IMM's idea of a heatbank does make sense. It would be quite easy to plumb this in, although a bit of wiring would be needed, and it has the advantage that the contents of the cylinder are not under pressure. The heat is stored in the cylinder in the form of water at low pressure and then this is pumped through an efficient heat exchanger to heat the mains water. With a vented primary system you can connect directly. I notice on yours what looks to be a small pressure vessel for the heating (red) at the corner of the picture. In this case you have a sealed system and you would use an indirect heat bank with its own header tank built in. Alternatively, you could just get the cylinder replaced with a new pressurised one. However this really is a job that is supposed to be done by a trained professional. If you were a 10/10 person on plumbing then I'd suggest that you make your own value judgment on whether to DIY, but since you say 8/10, then I would think carefully. If you get it wrong then you can create a dangerous situation. "BigWallop" wrote in message ... "The Natural Philosopher" wrote in message ... BigWallop wrote: Now go out and buy a big wire brush and some scouring pads and clean the whole up. Once youve done that, then more than likely you'l be able to reseal the plate and tank back together no problem with some proper neoprene sealing rings. But it all has to be shiny clean. Do you really think it can be resealed to 5 bar tested? Safely? Not disagreeing, just curious. Depends on how competent the OP is, although the banding does a lot of the work in pulling the two bits back together again, and as long as the correct seals are used, then it is a job that can be done by someone who's good with their hands and head (as in a bit of brain power). :-)) --- http://www.basecuritysystems.no-ip.com Outgoing mail is certified Virus Free. Checked by AVG anti-virus system (http://www.grisoft.com). Version: 6.0.560 / Virus Database: 352 - Release Date: 08/01/04 .andy To email, substitute .nospam with .gl ..andy To email, substitute .nospam with .gl |
#13
|
|||
|
|||
URGENT Leaking hot water cylinder (pressurised) HELP
Mine was installed by a complete gibbon, and I had to help him read the
instructions. It isn't quite as bad as you make out, because its cold water you fill it with. And that won't go BANG - just **** out of any joints. The standard way to pressure test a steam boiler is to fill it with water and pressurise it...for that reason.. The real danger is, if it ever boils. Thats why its equipped with safety valves and a pipe to vent steam out of. THIS is what needs to be thoroughly tested. A boiler of steam DOES explode, and is lethal. Even iof you do get a 'qualified' p[lumber to instrall it, I'd suggest reading the nstructions and cheacking up on what he does, and making sure any recommended tests are carried out. Agree throughout. Would the thing come with instructions on how to test? And surely separate pressure and temp release valves would be sufficinet here. Thats what I have today, and clearly would ensure I had in the future! If I can't locate Polystel, any recommendations for reasonable cost/performance replacements? Or anyone know of anyone who'd sell spares for Polystel ? |
#14
|
|||
|
|||
URGENT Leaking hot water cylinder (pressurised) HELP
"The Natural Philosopher" wrote in message ... IMM wrote: "RJ" wrote in message om... Semi tempted by this thought - but for 2 things - 1 getting the right seal - I can't find any mention of this particular setup on the web anywhere! and 2 - the top of the cylinder looks so rusted, that if all the rust is removed and cleaned away, it'll be impossible to reseal as the cylinder is so pitted and rusted... If an unvented cylinder shows signs of corrosion then ditch it. This is another rare occasion where I tend to agree with you :-) Amazing! You gradually learning then. --- -- Checked by AVG anti-virus system (http://www.grisoft.com). Version: 6.0.558 / Virus Database: 350 - Release Date: 02/01/2004 |
#15
|
|||
|
|||
URGENT Leaking hot water cylinder (pressurised) HELP
"RJ" wrote in message om... IMM & Andy Without taking the pi$$ too much - do you have any make/models of tanks you think may suffice that I could research more to see if its in my capabilities? My research suggests its doable if a little complex... Christian on this ng has just installed a DPS Pandora heat bank. Do a Google on Pandora. and look at it on http://www.heatweb.com. No overflow is required. You fill it up with hose and add the appropriate inhibitor. The same pipes you have around the kaput unvented cylinder just need connecting to the heat bank. flow and return from the boiler, to the flow and return of the heat bank. The Pandora has an integral heating coil just like the unvented cylinder. The cold feed from the cold mains to the cold mains feed of the heat bank. The hot draw-off pipe at the top of the unvented cylinder is the DHW outlet on the heat bank. Forget the overflow pipe as it is not applicable. The wiring can be advised by the heat bank makers. Get one with a back up immersion heat, they supply them fitted and fit the thermostat too. --- -- Checked by AVG anti-virus system (http://www.grisoft.com). Version: 6.0.558 / Virus Database: 350 - Release Date: 03/01/2004 |
#16
|
|||
|
|||
URGENT Leaking hot water cylinder (pressurised) HELP
"RJ" wrote in message om... Hi all I've just spent ages looking at what I've got - and I think its all clicked and I understand it. The cylinder has 4 pipes (excluding pressure/temp releif) - boiler in/return; cold feed and hot out. The boiler in/return is linked via an electric valve to the heating system, so this circut is under about 2 bar pressure controlled with its own pressure vessle/release valve. So - I reckon I could loop the boiler feeds, and put a stop-cock on the cold feed and the hot water out. This would mean I could have cold water and heating and not worry about the cylinder - and okay - no hot water. In which case, I'd be 100% confident of ripping out the cylinder without doing any damage. Assuming a replacement of a vented (aka thermal storage) system - from what I've found on the web, I'd just need to connect up the right pipe to the right hole and I'd have hot water again. Is it as LOGICALLY easy as that? (I know how to de/repressurise the boiler/heating loop). Any comments welcome, and I've got a few more questions below. Don't worry about running before walking, I never jump too quickly! Also - if I'm right about the issolation bit - its okay as we don't need hot water as we can go to the local swimming pool for a swim and shower every day!!! SO I can take my time! Some questions if I may be so bold 1 - is my understanding logically okay? 2 - any recommended systems / suppliers (UB or SL area) 3 - do systems normally come with all fixings and instruction manuals!!!? 4 - a phosphor de-scaler was noted in this thread. What is this and where does it fit? 5 - whats the thing I have on the boiler feeds on the tank. Red thing with long white wire. Is it a flow switch? If so - whats it for and whats its current purpose? 6 - any recommendations for websites to look at appreciated You have all been unbelieveably helpful - and are giving me some confidence to undertake this (only replacing with the storage type!!). IF I could get a plumber I'd be happy to pay, watch and learn, but they are just so busy they aren't interested! Any comments welcome - and if you want to talk to me directly you can via my email address which is on http://www.ryanandmel.com - under PERSONAL INFORMATION. (username=jones / password=jones) THANKS AGAIN! RJ See my post on the Pandora. This looks like what you need. Simple, no overflow and only 4 pipes require connecting. Less work replacing with this than with a new unvented cylinder. --- -- Checked by AVG anti-virus system (http://www.grisoft.com). Version: 6.0.558 / Virus Database: 350 - Release Date: 03/01/2004 |
#17
|
|||
|
|||
URGENT Leaking hot water cylinder (pressurised) HELP
I've looked at the Pandora and spoken to the guys at heatweb - very
helpful and he convinced me I could fit it! Pricey - but I guess every option I have will be as well! So many thanks for this suggestion. Still don't know what the red thing is.... "IMM" wrote in message ... "RJ" wrote in message om... IMM & Andy Without taking the pi$$ too much - do you have any make/models of tanks you think may suffice that I could research more to see if its in my capabilities? My research suggests its doable if a little complex... Christian on this ng has just installed a DPS Pandora heat bank. Do a Google on Pandora. and look at it on http://www.heatweb.com. No overflow is required. You fill it up with hose and add the appropriate inhibitor. |
#18
|
|||
|
|||
URGENT Leaking hot water cylinder (pressurised) HELP
"RJ" wrote in message om... I've looked at the Pandora and spoken to the guys at heatweb - very helpful and he convinced me I could fit it! Pricey - but I guess every option I have will be as well! The Pandora is about the same price as an unvented cylinder. But with the problems they have. --- -- Checked by AVG anti-virus system (http://www.grisoft.com). Version: 6.0.558 / Virus Database: 350 - Release Date: 02/01/2004 |
#19
|
|||
|
|||
URGENT Leaking hot water cylinder (pressurised) HELP
On 12 Jan 2004 05:06:45 -0800, (RJ) wrote:
I've looked at the Pandora and spoken to the guys at heatweb - very helpful and he convinced me I could fit it! Pricey - but I guess every option I have will be as well! So many thanks for this suggestion. Still don't know what the red thing is.... The expansion vessel for the heating primary circuit. "IMM" wrote in message ... "RJ" wrote in message om... IMM & Andy Without taking the pi$$ too much - do you have any make/models of tanks you think may suffice that I could research more to see if its in my capabilities? My research suggests its doable if a little complex... Christian on this ng has just installed a DPS Pandora heat bank. Do a Google on Pandora. and look at it on http://www.heatweb.com. No overflow is required. You fill it up with hose and add the appropriate inhibitor. ..andy To email, substitute .nospam with .gl |
#20
|
|||
|
|||
URGENT Leaking hot water cylinder (pressurised) HELP
|
#21
|
|||
|
|||
URGENT Leaking hot water cylinder (pressurised) HELP
"Tim Hardisty" wrote in message ... On 12 Jan 2004 05:06:45 -0800, (RJ) wrote: Still don't know what the red thing is.... Is it an immersion heater? Difficult to tell from the pictures whether it is sitting on and/or attached to pipework, or if it is sitting on the top of the cylinder. Tim Hardisty. It's a Redring IHC 2 immersion heater. Immersion Heater Coil 2, 240 volts ~ 3Kw. --- http://www.basecuritysystems.no-ip.com Outgoing mail is certified Virus Free. Checked by AVG anti-virus system (http://www.grisoft.com). Version: 6.0.560 / Virus Database: 352 - Release Date: 08/01/04 |
#22
|
|||
|
|||
URGENT Leaking hot water cylinder (pressurised) HELP
Not "that" red thing - I know that!
The thing in top-left corner on the top of the cylinder. It has an electrical connector to it and I can't work it out. Its on the end of a T for the boiler in/return. Pandora is looking more & more likely. Any other alternatives worth checking out? Andy Hall wrote in message . .. On 12 Jan 2004 05:06:45 -0800, (RJ) wrote: I've looked at the Pandora and spoken to the guys at heatweb - very helpful and he convinced me I could fit it! Pricey - but I guess every option I have will be as well! So many thanks for this suggestion. Still don't know what the red thing is.... The expansion vessel for the heating primary circuit. "IMM" wrote in message ... "RJ" wrote in message om... IMM & Andy Without taking the pi$$ too much - do you have any make/models of tanks you think may suffice that I could research more to see if its in my capabilities? My research suggests its doable if a little complex... Christian on this ng has just installed a DPS Pandora heat bank. Do a Google on Pandora. and look at it on http://www.heatweb.com. No overflow is required. You fill it up with hose and add the appropriate inhibitor. .andy To email, substitute .nospam with .gl |
#23
|
|||
|
|||
URGENT Leaking hot water cylinder (pressurised) HELP
|
#24
|
|||
|
|||
URGENT Leaking hot water cylinder (pressurised) HELP
"RJ" wrote in message om... Not "that" red thing - I know that! The thing in top-left corner on the top of the cylinder. It has an electrical connector to it and I can't work it out. Its on the end of a T for the boiler in/return. Pandora is looking more & more likely. Any other alternatives worth checking out? Look at the Range cylinders thermal store. They may have one that is readily in stock. --- -- Checked by AVG anti-virus system (http://www.grisoft.com). Version: 6.0.558 / Virus Database: 350 - Release Date: 02/01/2004 |
#25
|
|||
|
|||
URGENT Leaking hot water cylinder (pressurised) HELP
"Andy Hall" wrote in message ... On 12 Jan 2004 11:23:48 -0800, (RJ) wrote: snipped If so, then it's possibly a flow switch, pressure switch or thermostat or something like that. I think he meant this red thing: http://www.basecsys.pwp.blueyonder.co.uk/tank3.jpg --- http://www.basecuritysystems.no-ip.com Outgoing mail is certified Virus Free. Checked by AVG anti-virus system (http://www.grisoft.com). Version: 6.0.560 / Virus Database: 352 - Release Date: 08/01/04 |
#26
|
|||
|
|||
URGENT Leaking hot water cylinder (pressurised) HELP
On Mon, 12 Jan 2004 23:34:26 GMT, "BigWallop"
wrote: "Andy Hall" wrote in message .. . On 12 Jan 2004 11:23:48 -0800, (RJ) wrote: snipped If so, then it's possibly a flow switch, pressure switch or thermostat or something like that. I think he meant this red thing: http://www.basecsys.pwp.blueyonder.co.uk/tank3.jpg Nope, he already mentioned that he realised that this is the CH expansion vessel. The one on the top appears at first sight to be an immersion heater, but when you look more closely, I don't think that it is. ..andy To email, substitute .nospam with .gl |
#27
|
|||
|
|||
URGENT Leaking hot water cylinder (pressurised) HELP
"Andy Hall" wrote in message ... On 12 Jan 2004 11:23:48 -0800, (RJ) wrote: Not "that" red thing - I know that! The thing in top-left corner on the top of the cylinder. It has an electrical connector to it and I can't work it out. Its on the end of a T for the boiler in/return. I was going to say it's an immersion heater. The make is right and the shape of the top is like an immersion heater cover. However, from enlarging one of the photos it appears that it says 240v 3A. An immersion heater would normally be 13A or more. Also I wouldn't expect it to be located as described. Where does the other end of its lead go? To a terminal box along with the lead from the cylinder thermostat? If so, then it's possibly a flow switch, pressure switch or thermostat or something like that. This appears to be a high temperature boiler cut out. It is on the boilers return from the coil. If the return is too high it means the boiler is running away. The cylinder is up and over temp and the difference between the flow and return is minimal. It could be because of a number of problems all occurring at once, which means the cylinder will get and hotter and in danger of exploding if the pressure relief does not open. Some versions of unvented cylinders have a high-temperature relief valve. If high temperatures occur, typically 90-95C, the valve physically open to an overflow pipe. --- -- Checked by AVG anti-virus system (http://www.grisoft.com). Version: 6.0.558 / Virus Database: 350 - Release Date: 02/01/2004 |
#28
|
|||
|
|||
URGENT Leaking hot water cylinder (pressurised) HELP
On Mon, 12 Jan 2004 23:59:44 -0000, "IMM" wrote:
"Andy Hall" wrote in message .. . On 12 Jan 2004 11:23:48 -0800, (RJ) wrote: Not "that" red thing - I know that! The thing in top-left corner on the top of the cylinder. It has an electrical connector to it and I can't work it out. Its on the end of a T for the boiler in/return. I was going to say it's an immersion heater. The make is right and the shape of the top is like an immersion heater cover. However, from enlarging one of the photos it appears that it says 240v 3A. An immersion heater would normally be 13A or more. Also I wouldn't expect it to be located as described. Where does the other end of its lead go? To a terminal box along with the lead from the cylinder thermostat? If so, then it's possibly a flow switch, pressure switch or thermostat or something like that. This appears to be a high temperature boiler cut out. It is on the boilers return from the coil. If the return is too high it means the boiler is running away. The cylinder is up and over temp and the difference between the flow and return is minimal. It could be because of a number of problems all occurring at once, which means the cylinder will get and hotter and in danger of exploding if the pressure relief does not open. Some versions of unvented cylinders have a high-temperature relief valve. If high temperatures occur, typically 90-95C, the valve physically open to an overflow pipe. That would make sense. The plate shows that it was made by Redring with a model code of IHC 2; but this doesn't appear on their web site - it looks quite old anyway. --- ..andy To email, substitute .nospam with .gl |
#29
|
|||
|
|||
URGENT Leaking hot water cylinder (pressurised) HELP
Nope.
The imerssion heater goes in the centre of the tank - but it isn't cabled. The red thing is deffinately not a heater, it connects only via the end of the T piece and teh cabling going to it is 13A - probably 3 or 5A cable going to a junction box. "BigWallop" wrote in message ... "Tim Hardisty" wrote in message ... On 12 Jan 2004 05:06:45 -0800, (RJ) wrote: Still don't know what the red thing is.... Is it an immersion heater? Difficult to tell from the pictures whether it is sitting on and/or attached to pipework, or if it is sitting on the top of the cylinder. Tim Hardisty. It's a Redring IHC 2 immersion heater. Immersion Heater Coil 2, 240 volts ~ 3Kw. --- http://www.basecuritysystems.no-ip.com Outgoing mail is certified Virus Free. Checked by AVG anti-virus system (http://www.grisoft.com). Version: 6.0.560 / Virus Database: 352 - Release Date: 08/01/04 |
#30
|
|||
|
|||
URGENT Leaking hot water cylinder (pressurised) HELP
Boiler high temp cut out? I could go along with that! The cylinder
does have a 90' temp release valve as well. So this must be a secondary type. I guess it'll do no harm to put this on the boiler return of any new cylinder I put in anyway. "IMM" wrote in message ... "Andy Hall" wrote in message ... On 12 Jan 2004 11:23:48 -0800, (RJ) wrote: Not "that" red thing - I know that! The thing in top-left corner on the top of the cylinder. It has an electrical connector to it and I can't work it out. Its on the end of a T for the boiler in/return. I was going to say it's an immersion heater. The make is right and the shape of the top is like an immersion heater cover. However, from enlarging one of the photos it appears that it says 240v 3A. An immersion heater would normally be 13A or more. Also I wouldn't expect it to be located as described. Where does the other end of its lead go? To a terminal box along with the lead from the cylinder thermostat? If so, then it's possibly a flow switch, pressure switch or thermostat or something like that. This appears to be a high temperature boiler cut out. It is on the boilers return from the coil. If the return is too high it means the boiler is running away. The cylinder is up and over temp and the difference between the flow and return is minimal. It could be because of a number of problems all occurring at once, which means the cylinder will get and hotter and in danger of exploding if the pressure relief does not open. Some versions of unvented cylinders have a high-temperature relief valve. If high temperatures occur, typically 90-95C, the valve physically open to an overflow pipe. --- |
#31
|
|||
|
|||
URGENT Leaking hot water cylinder (pressurised) HELP
"RJ" wrote in message om... Boiler high temp cut out? I could go along with that! The cylinder does have a 90' temp release valve as well. So this must be a secondary type. I guess it'll do no harm to put this on the boiler return of any new cylinder I put in anyway. What is underneath the cover. take it off and have a look. --- -- Checked by AVG anti-virus system (http://www.grisoft.com). Version: 6.0.558 / Virus Database: 350 - Release Date: 02/01/2004 |
#32
|
|||
|
|||
URGENT Leaking hot water cylinder (pressurised) HELP
After all the advice here and elsewhere - we got a quote from plumber
for 500 + 250 labour + vat to replace with another unvented system (ariston); and to DIY with thermal store was about 700 + bits + a few new tools. So - went with plumber. Hmmm. Never ever ever again. Not slagging off all plumbers as I'm sure you guys aren't like this - but 20-30 visits to van (minimum) at slow walking pace, and taking ages over doing anything - it gets put in in 8 hours - and I get charged 500 labour not 250. WHAT!? Not really fair. Oh - and do you need to be qualified to put it in? No offence to the advice - but no - it was easily doable by a good DIYer. And the extra tests for building regs and unvented systems? What test!? 1 - big label: "THIS MUST BE EARTHED" and an earth bolt underneath. No cable... 2 - Tundish must be seen. (old one couldn't) - so he moved it so it could be seen. Fair enough. Manual says "do not bend pipe or put in any angles until 300mm from tundish). Mine is about 160mm 3 - Testing pressure valve and drainage? Never heard/saw it tested. Guy never checked the exit pipework - I know because the back door was locked. But - he did tidy up after him and remove the old crap. But why so slow!? Just to make a days job out of it IMO. *******. I'mnot sure I could have done in the time he did - but I'm no expert! I mean - it took 2 hours to drain the old tank. WHY!!!!? I know damn well I could have done that in 10-20 mins!! Rant over. I've learned a lot (mainly from you guys here - many many thanks - but also learned that some tradesman (and employees of big plumber company) are a bunch of gits. Only go on recommendations from now on! But job done - and no leaks! RJ (RJ) wrote in message . com... Hi My hot water cylinder is dripping, and to be honest, it looks pretty dead - huge amounts of corrosion everywhere. Sadly its not simple... I've got a pressurised water system, and the cylinder is labelled Polystel PS125 / 3 - with operating pressure of 3 bar. All the pipework goes into the to of the cylinder through a metal cap that looks like a beer bottle top. Its leaking from under there. The rust is quite evident and obvious. Photos of tank are at:- http://www.ryanandmel.com/tank1.jpg and http://www.ryanandmel.com/tank2.jpg I have no idea if its direct or indirect (don't even know what this means) - and as an avid DIY'er I know I can swap it for a like item. However, I can find nothing at all on the web about this cylinder and all the ones I can find have side entry pipes - which clearly isn't what I'm looking for. I've called 3 plumbers, and one can't quote for 3 weeks, one can't speak to me till Monday and one isn't interested. Oh what a trade! Any recommendations for plumbers in West Drayton/Uxbridge area appreciated! ANY HELP AT ALL is appreciated - this forum has been very helpful in the past - so here's hoping! Thanks! RJ |
#33
|
|||
|
|||
URGENT Leaking hot water cylinder (pressurised) HELP
"RJ" wrote in message om... After all the advice here and elsewhere - we got a quote from plumber for 500 + 250 labour + vat to replace with another unvented system (ariston); and to DIY with thermal store was about 700 + bits + a few new tools. Thermal stores are available for far less than £700. |
#34
|
|||
|
|||
URGENT Leaking hot water cylinder (pressurised) HELP
|
#35
|
|||
|
|||
URGENT Leaking hot water cylinder (pressurised) HELP
IMM wrote:
Thermal stores are available for far less than £700. Recommendations? Whilst on the subject, scaling seems to be an issue, at least in the minds of blurb writers. Any useful experiences? Chris -- Chris J Dixon Nottingham UK Have dancing shoes, will ceilidh. |
#36
|
|||
|
|||
URGENT Leaking hot water cylinder (pressurised) HELP
"Chris J Dixon" wrote in message ... IMM wrote: Thermal stores are available for far less than £700. Recommendations? On price? The Albion Mainsflow DHW Mainflow can be obtained for around £500 (this has an internal heat transfer coil), as can the Range Cylinders thermal store. £500 for an Ariston unvented cylinder is at the bottom end of the quality range. Whilst on the subject, scaling seems to be an issue, at least in the minds of blurb writers. Any useful experiences? You should put on the cold feed a phosphor decaling canister. This applies to unvented cylinders, thermal stores, heat banks and combi's. With a heat bank using an external plate heat exchanger, it is a matter of valving off , removing the plate and descaling it. A very easy almost DIY job. |
#37
|
|||
|
|||
URGENT Leaking hot water cylinder (pressurised) HELP
Chris J Dixon wrote in
: Whilst on the subject, scaling seems to be an issue, at least in the minds of blurb writers. Any useful experiences? Going fishing? mike r |
#38
|
|||
|
|||
URGENT Leaking hot water cylinder (pressurised) HELP
On 4 Feb 2004 07:01:33 -0800, (RJ) wrote:
After all the advice here and elsewhere - we got a quote from plumber for 500 + 250 labour + vat to replace with another unvented system (ariston); and to DIY with thermal store was about 700 + bits + a few new tools. So - went with plumber. Hmmm. Never ever ever again. Not slagging off all plumbers as I'm sure you guys aren't like this - but 20-30 visits to van (minimum) at slow walking pace, and taking ages over doing anything - it gets put in in 8 hours - and I get charged 500 labour not 250. WHAT!? Not really fair. DIdn't you have a fixed price on the labour. Oh - and do you need to be qualified to put it in? No offence to the advice - but no - it was easily doable by a good DIYer. Yes of course it is. None of this is rocket science. And the extra tests for building regs and unvented systems? What test!? 1 - big label: "THIS MUST BE EARTHED" and an earth bolt underneath. No cable... It should be bonded. 2 - Tundish must be seen. (old one couldn't) - so he moved it so it could be seen. Fair enough. Manual says "do not bend pipe or put in any angles until 300mm from tundish). Mine is about 160mm That's clearly laid out in the approved docs to the building regulations, IIRC. It doesn't have the force of law but is recommended good practice. 3 - Testing pressure valve and drainage? Never heard/saw it tested. Guy never checked the exit pipework - I know because the back door was locked. But - he did tidy up after him and remove the old crap. Something, I suppose. Realistically, this was a day's work, but I would have expected a better job. But why so slow!? Just to make a days job out of it IMO. *******. I'mnot sure I could have done in the time he did - but I'm no expert! I mean - it took 2 hours to drain the old tank. WHY!!!!? I know damn well I could have done that in 10-20 mins!! Rant over. I've learned a lot (mainly from you guys here - many many thanks - but also learned that some tradesman (and employees of big plumber company) are a bunch of gits. Only go on recommendations from now on! But job done - and no leaks! RJ (RJ) wrote in message . com... Hi My hot water cylinder is dripping, and to be honest, it looks pretty dead - huge amounts of corrosion everywhere. Sadly its not simple... I've got a pressurised water system, and the cylinder is labelled Polystel PS125 / 3 - with operating pressure of 3 bar. All the pipework goes into the to of the cylinder through a metal cap that looks like a beer bottle top. Its leaking from under there. The rust is quite evident and obvious. Photos of tank are at:- http://www.ryanandmel.com/tank1.jpg and http://www.ryanandmel.com/tank2.jpg I have no idea if its direct or indirect (don't even know what this means) - and as an avid DIY'er I know I can swap it for a like item. However, I can find nothing at all on the web about this cylinder and all the ones I can find have side entry pipes - which clearly isn't what I'm looking for. I've called 3 plumbers, and one can't quote for 3 weeks, one can't speak to me till Monday and one isn't interested. Oh what a trade! Any recommendations for plumbers in West Drayton/Uxbridge area appreciated! ANY HELP AT ALL is appreciated - this forum has been very helpful in the past - so here's hoping! Thanks! RJ ..andy To email, substitute .nospam with .gl |
#39
|
|||
|
|||
URGENT Leaking hot water cylinder (pressurised) HELP
On Wed, 04 Feb 2004 16:26:16 +0000, PoP wrote:
On 4 Feb 2004 07:01:33 -0800, (RJ) wrote: 8 hours - and I get charged 500 labour not 250. Blimey. That'd buy me for a week! I've been thinking about putting my prices up..... Just remember. Why does a dog lick its balls.........?? PoP Sending email to my published email address isn't guaranteed to reach me. ..andy To email, substitute .nospam with .gl |
#40
|
|||
|
|||
URGENT Leaking hot water cylinder (pressurised) HELP
On Wed, 04 Feb 2004 19:49:07 +0000, Andy Hall
wrote: Just remember. Why does a dog lick its balls.........?? Err, dunno. However if you are suggesting you'll give me 500 notes to lick a dogs balls, forget it. And I know this is the DIY forum but I'm afraid I wouldn't be able to lick my own..... PoP Sending email to my published email address isn't guaranteed to reach me. |
Reply |
|
Thread Tools | Search this Thread |
Display Modes | |
|
|
Similar Threads | ||||
Thread | Forum | |||
Views on Potterton Suprema and Megaflow? | UK diy | |||
Contemplating unvented Indirect hot water upgrade | UK diy | |||
Hot Water Cylinder | UK diy | |||
Urgent : Water leaking from heating pump 'electrical box' | UK diy | |||
Hot water cylinder | UK diy |