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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. |
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#1
Posted to uk.d-i-y
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Pretty stupid push-fit question
I need to cap off an old feed under the bath down into the kitchen since
it's re-model. I can get my hand and a pipe cutter in there easily - but couldn't get a gas torch anywhere in there - so - these push-fit things - can I just deburr and push a push-fit stop end on? Cheers Dan. |
#2
Posted to uk.d-i-y
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Pretty stupid push-fit question
On Sun, 02 Apr 2006 16:07:35 GMT, "Dan delaMare-Lyon"
wrote: I need to cap off an old feed under the bath down into the kitchen since it's re-model. I can get my hand and a pipe cutter in there easily - but couldn't get a gas torch anywhere in there - so - these push-fit things - can I just deburr and push a push-fit stop end on? Cheers Dan. Yes. -- ..andy |
#3
Posted to uk.d-i-y
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Pretty stupid push-fit question
In an earlier contribution to this discussion,
Dan delaMare-Lyon wrote: I need to cap off an old feed under the bath down into the kitchen since it's re-model. I can get my hand and a pipe cutter in there easily - but couldn't get a gas torch anywhere in there - so - these push-fit things - can I just deburr and push a push-fit stop end on? Cheers Dan. In principle, yes. How old is the feed, and what size pipe is it? I'm not sure that you can get push-fit fittings for imperial pipe. If it's 15mm or 22mm copper, fine. Cut it with a proper pipe cutter which has a cutting wheel, and then clean up the end inch or so with wire wool. The cutter will have turned the end in slightly, so there's no need to de-burr. I would use copper push-fit in metal pipe. In the unlikely event that it's a stainless steel pipe - fitted in the copper shortage in the 1960's or whenever - you won't be able to use pushfit - 'cos it won't grip properly. -- Cheers, Roger ______ Please reply to newsgroup. Reply address IS valid, but not regularly monitored. |
#4
Posted to uk.d-i-y
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Pretty stupid push-fit question
"Dan delaMare-Lyon" wrote in
: I need to cap off an old feed under the bath down into the kitchen since it's re-model. I can get my hand and a pipe cutter in there easily - but couldn't get a gas torch anywhere in there - so - these push-fit things - can I just deburr and push a push-fit stop end on? Cheers Dan. I'd rather use a compression; they don't fail as disastrously if they do fail mike |
#5
Posted to uk.d-i-y
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Pretty stupid push-fit question
On 2 Apr 2006 18:16:34 GMT, mike wrote:
"Dan delaMare-Lyon" wrote in : I need to cap off an old feed under the bath down into the kitchen since it's re-model. I can get my hand and a pipe cutter in there easily - but couldn't get a gas torch anywhere in there - so - these push-fit things - can I just deburr and push a push-fit stop end on? Cheers Dan. I'd rather use a compression; they don't fail as disastrously if they do fail mike They can..... In an awkward position it is perfectly possible to "tighten one up", but in fact it really isn't and the olive has not cramped onto the pipe properly. This is especially true if the pipe is old and has naturally hardened. Under pressure the fitting can pop off...... I've seen it happen. -- ..andy |
#6
Posted to uk.d-i-y
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Pretty stupid push-fit question
On 2 Apr 2006 18:16:34 GMT someone who may be mike
wrote this:- I'd rather use a compression; they don't fail as disastrously if they do fail Some years ago I had just sat down to Christmas dinner with other members of the family (not in my house BTW) and the starter was just about to be put on the table. There was a sudden sound of running water, which I thought was a pan being emptied in the kitchen. However, I was soon asked to help and in the main bathroom I was able to observe a waterfall coming down from the loft. Feeling a bit like a sumbmariner I climbed up the ladder as the water came down. The cause of the waterfall was a failed joint which had been installed a day or two before. Because of the fashion for mains pressure water systems a lot of water had ****ed out of this joint in a short period. The plumber had used a push-fit fitting, despite being paid to do the job properly. The replacement compression fitting went on with the aid of much swearing about plumbers and is still working happily five years or so later. -- David Hansen, Edinburgh I will *always* explain revoked encryption keys, unless RIP prevents me http://www.opsi.gov.uk/acts/acts2000/00023--e.htm#54 |
#7
Posted to uk.d-i-y
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Pretty stupid push-fit question
"Roger Mills" wrote in message
... In an earlier contribution to this discussion, Dan delaMare-Lyon wrote: I need to cap off an old feed under the bath down into the kitchen since it's re-model. I can get my hand and a pipe cutter in there easily - but couldn't get a gas torch anywhere in there - so - these push-fit things - can I just deburr and push a push-fit stop end on? In principle, yes. How old is the feed, and what size pipe is it? I'm not sure that you can get push-fit fittings for imperial pipe. If it's 15mm or 22mm copper, fine. Cut it with a proper pipe cutter which has a cutting wheel, and then clean up the end inch or so with wire wool. The cutter will have turned the end in slightly, so there's no need to de-burr. I would use copper push-fit in metal pipe. In the unlikely event that it's a stainless steel pipe - fitted in the copper shortage in the 1960's or whenever - you won't be able to use pushfit - 'cos it won't grip properly. Nope in the clear on this one - she's a 15mm copper Cheers dan. |
#8
Posted to uk.d-i-y
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Pretty stupid push-fit question
On 2 Apr 2006 12:05:30 -0700, "Tournifreak"
wrote: David Hansen wrote: On 2 Apr 2006 18:16:34 GMT someone who may be mike wrote this:- I'd rather use a compression; they don't fail as disastrously if they do fail Some years ago I had just sat down to Christmas dinner with other members of the family (not in my house BTW) and the starter was just about to be put on the table. There was a sudden sound of running water, which I thought was a pan being emptied in the kitchen. However, I was soon asked to help and in the main bathroom I was able to observe a waterfall coming down from the loft. Feeling a bit like a sumbmariner I climbed up the ladder as the water came down. The cause of the waterfall was a failed joint which had been installed a day or two before. Because of the fashion for mains pressure water systems a lot of water had ****ed out of this joint in a short period. The plumber had used a push-fit fitting, despite being paid to do the job properly. I would say that's the fault of the plumber rather than the fitting. I'd say it's just as easy (or difficult!) to mess up a solder joint, compression joint, or push fit joint. All have their potential pitfalls. (I may come back here in a year or two and eat humble pie when all my speedfit fittings fall apart though... :-) Jon. As long as you didn't cut the tube with a hacksaw, this is very unlikely...... -- ..andy |
#9
Posted to uk.d-i-y
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Pretty stupid push-fit question
On Sun, 02 Apr 2006 20:06:52 +0100, Owain
wrote: Dan delaMare-Lyon wrote: I need to cap off an old feed under the bath down into the kitchen since it's re-model. I can get my hand and a pipe cutter in there easily - but couldn't get a gas torch anywhere in there - so - these push-fit things - can I just deburr and push a push-fit stop end on? Possibly an even stupider question, but this is a water pipe you're wanting to blank off, and not gas? Owain I've heard of energy conservation and recycling, but gas feeds under the bath? -- ..andy |
#10
Posted to uk.d-i-y
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Pretty stupid push-fit question
Andy Hall wrote in
: I've heard of energy conservation and recycling, but gas feeds under the bath? Could make sense for vegetarians mike |
#11
Posted to uk.d-i-y
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Pretty stupid push-fit question
On Sun, 02 Apr 2006 21:31:17 +0100, Andy Hall wrote:
On Sun, 02 Apr 2006 20:06:52 +0100, Owain wrote: Dan delaMare-Lyon wrote: I need to cap off an old feed under the bath down into the kitchen since it's re-model. I can get my hand and a pipe cutter in there easily - but couldn't get a gas torch anywhere in there - so - these push-fit things - can I just deburr and push a push-fit stop end on? Possibly an even stupider question, but this is a water pipe you're wanting to blank off, and not gas? Owain I've heard of energy conservation and recycling, but gas feeds under the bath? It's now dead pipe work, but until a few years ago that was the situation in my house and all the others in the terrace. Originally: The iron pipe emerged from under the floor under the bath and then was chased into the wall around the side of the bath. It's purpose was to supply a large instantaneous gas water heater as an alternative to the solid fuel back-boiler and direct gravity heating of the HW tank (cf. cylinder). Until about 5 years ago my neighbour still had the complete asbestos flue mounted outside. -- Ed Sirett - Property maintainer and registered gas fitter. The FAQ for uk.diy is at http://www.diyfaq.org.uk Gas fitting FAQ http://www.makewrite.demon.co.uk/GasFitting.html Sealed CH FAQ http://www.makewrite.demon.co.uk/SealedCH.html Choosing a Boiler FAQ http://www.makewrite.demon.co.uk/BoilerChoice.html |
#12
Posted to uk.d-i-y
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Pretty stupid push-fit question
On Sun, 02 Apr 2006 17:23:17 +0100, Roger Mills wrote:
In an earlier contribution to this discussion, Dan delaMare-Lyon wrote: I need to cap off an old feed under the bath down into the kitchen since it's re-model. I can get my hand and a pipe cutter in there easily - but couldn't get a gas torch anywhere in there - so - these push-fit things - can I just deburr and push a push-fit stop end on? Cheers Dan. In principle, yes. How old is the feed, and what size pipe is it? I'm not sure that you can get push-fit fittings for imperial pipe. If it's 15mm or 22mm copper, fine. Cut it with a proper pipe cutter which has a cutting wheel, and then clean up the end inch or so with wire wool. The cutter will have turned the end in slightly, so there's no need to de-burr. I would use copper push-fit in metal pipe. In the unlikely event that it's a stainless steel pipe - fitted in the copper shortage in the 1960's or whenever - you won't be able to use pushfit - 'cos it won't grip properly. Imperial copper tube is fairly rare IME. The 15mm push fits will go onto the 1/2" they are a little tight, you might not remove the fitting after unless it is the sort you unscrew. -- Ed Sirett - Property maintainer and registered gas fitter. The FAQ for uk.diy is at http://www.diyfaq.org.uk Gas fitting FAQ http://www.makewrite.demon.co.uk/GasFitting.html Sealed CH FAQ http://www.makewrite.demon.co.uk/SealedCH.html Choosing a Boiler FAQ http://www.makewrite.demon.co.uk/BoilerChoice.html |
#13
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Using wire wool on pipe for a pushfit fitting is asking for trouble. This will lead to a leak as you are scoring the smooth surface of the pipe which is what the sealing ring seals against????
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#14
Posted to uk.d-i-y
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Pretty stupid push-fit question
In an earlier contribution to this discussion,
Ed Sirett wrote: Imperial copper tube is fairly rare IME. ??? -- Cheers, Roger ______ Please reply to newsgroup. Reply address IS valid, but not regularly monitored. |
#15
Posted to uk.d-i-y
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Pretty stupid push-fit question
On Mon, 03 Apr 2006 15:17:24 +0100, Roger Mills wrote:
In an earlier contribution to this discussion, Ed Sirett wrote: Imperial copper tube is fairly rare IME. ??? It's something to watch out for when you think the pipework is around 35-40 years old. I might come across it a few times a year and I'm dealing with pipes at least 2 days a week. -- Ed Sirett - Property maintainer and registered gas fitter. The FAQ for uk.diy is at http://www.diyfaq.org.uk Gas fitting FAQ http://www.makewrite.demon.co.uk/GasFitting.html Sealed CH FAQ http://www.makewrite.demon.co.uk/SealedCH.html Choosing a Boiler FAQ http://www.makewrite.demon.co.uk/BoilerChoice.html |
#16
Posted to uk.d-i-y
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Pretty stupid push-fit question
In an earlier contribution to this discussion,
Ed Sirett wrote: On Mon, 03 Apr 2006 15:17:24 +0100, Roger Mills wrote: In an earlier contribution to this discussion, Ed Sirett wrote: Imperial copper tube is fairly rare IME. ??? It's something to watch out for when you think the pipework is around 35-40 years old. I might come across it a few times a year and I'm dealing with pipes at least 2 days a week. Well I suppose that I may be atypical - but I've had it in both houses which I've owned, and in my father-in-law's house - all built in the 1960's. So I suspect that there's still a lot of it about even if you don't personally encounter it very often. -- Cheers, Roger ______ Please reply to newsgroup. Reply address IS valid, but not regularly monitored. |
#17
Posted to uk.d-i-y
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Pretty stupid push-fit question
Ed Sirett wrote: Roger Mills wrote: Ed Sirett wrote: Imperial copper tube is fairly rare IME. It's something to watch out for when you think the pipework is around 35-40 years old. I might come across it a few times a year and I'm dealing with pipes at least 2 days a week. It's quite easily identified tho. IME imperial pipes have big chunky hex fittings, rather than the neater more modern compression fittings (e.g the ones with the 'ears') Cheers Paul. |
#18
Posted to uk.d-i-y
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Pretty stupid push-fit question
"Andy Hall" aka Matt wrote in message ... On 2 Apr 2006 18:16:34 GMT, mike wrote: "Dan delaMare-Lyon" wrote in : I need to cap off an old feed under the bath down into the kitchen since it's re-model. I can get my hand and a pipe cutter in there easily - but couldn't get a gas torch anywhere in there - so - these push-fit things - can I just deburr and push a push-fit stop end on? Cheers Dan. I'd rather use a compression; they don't fail as disastrously if they do fail mike They can..... In an awkward position it is perfectly possible to "tighten one up", but in fact it really isn't and the olive has not cramped onto the pipe properly. This is especially true if the pipe is old and has naturally hardened. Under pressure the fitting can pop off...... I've seen it happen. Matt, you just made that up. |
#19
Posted to uk.d-i-y
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Pretty stupid push-fit question
"Tournifreak" wrote in message ups.com... David Hansen wrote: On 2 Apr 2006 18:16:34 GMT someone who may be mike wrote this:- I'd rather use a compression; they don't fail as disastrously if they do fail Some years ago I had just sat down to Christmas dinner with other members of the family (not in my house BTW) and the starter was just about to be put on the table. There was a sudden sound of running water, which I thought was a pan being emptied in the kitchen. However, I was soon asked to help and in the main bathroom I was able to observe a waterfall coming down from the loft. Feeling a bit like a sumbmariner I climbed up the ladder as the water came down. The cause of the waterfall was a failed joint which had been installed a day or two before. Because of the fashion for mains pressure water systems a lot of water had ****ed out of this joint in a short period. The plumber had used a push-fit fitting, despite being paid to do the job properly. I would say that's the fault of the plumber rather than the fitting. I would say it was the fitting. |
#20
Posted to uk.d-i-y
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Pretty stupid push-fit question
"Andy Hall" aka Matt wrote in message ... On 2 Apr 2006 12:05:30 -0700, "Tournifreak" wrote: David Hansen wrote: On 2 Apr 2006 18:16:34 GMT someone who may be mike wrote this:- I'd rather use a compression; they don't fail as disastrously if they do fail Some years ago I had just sat down to Christmas dinner with other members of the family (not in my house BTW) and the starter was just about to be put on the table. There was a sudden sound of running water, which I thought was a pan being emptied in the kitchen. However, I was soon asked to help and in the main bathroom I was able to observe a waterfall coming down from the loft. Feeling a bit like a sumbmariner I climbed up the ladder as the water came down. The cause of the waterfall was a failed joint which had been installed a day or two before. Because of the fashion for mains pressure water systems a lot of water had ****ed out of this joint in a short period. The plumber had used a push-fit fitting, despite being paid to do the job properly. I would say that's the fault of the plumber rather than the fitting. I'd say it's just as easy (or difficult!) to mess up a solder joint, compression joint, or push fit joint. All have their potential pitfalls. (I may come back here in a year or two and eat humble pie when all my speedfit fittings fall apart though... :-) Jon. As long as you didn't cut the tube with a hacksaw, this is very unlikely...... Matt, he can cut the pipe with a hacksaw as long as he trims off properly. It is clear you don't know this sort of thing. |
#21
Posted to uk.d-i-y
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Pretty stupid push-fit question
"Roger Mills" wrote in message ... In an earlier contribution to this discussion, Ed Sirett wrote: On Mon, 03 Apr 2006 15:17:24 +0100, Roger Mills wrote: In an earlier contribution to this discussion, Ed Sirett wrote: Imperial copper tube is fairly rare IME. ??? It's something to watch out for when you think the pipework is around 35-40 years old. I might come across it a few times a year and I'm dealing with pipes at least 2 days a week. Well I suppose that I may be atypical - but I've had it in both houses which I've owned, and in my father-in-law's house - all built in the 1960's. So I suspect that there's still a lot of it about even if you don't personally encounter it very often. -- Cheers, Roger ______ from memory ... which might be fallible ... it was about 1969~1970 ish that the change over from English measurements to metric measurements happened in copper tubing. [pendants note: there ain't any such thing as 'Imperial' linear measurements! -Albert restricted his messing about to volumetric/weight thingies equating the gallon to ten pounds et.seq. throughout the Empire. the linear measurements of inch, foot, yards, et.al remained unchanged] /rant -- Brian |
#22
Posted to uk.d-i-y
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Pretty stupid push-fit question
In an earlier contribution to this discussion,
Brian Sharrock wrote: from memory ... which might be fallible ... it was about 1969~1970 ish that the change over from English measurements to metric measurements happened in copper tubing. I think it was probably later than that. I installed central heating in my previous house in 1969 using 1/2" and 3/4" copper pipe - and there was not even a hint of metric sizes then as far as I can remember. Towards the end of the period in which inch sizes were used, there were several revisions to the standard - with progressively smaller wall thicknesses - so you had to make sure you had the right bending spring - and the thinner walled stuff was more difficult to bend without kinking. -- Cheers, Roger ______ Please reply to newsgroup. Reply address IS valid, but not regularly monitored. |
#23
Posted to uk.d-i-y
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Pretty stupid push-fit question
On Tue, 04 Apr 2006 00:29:06 +0100, Roger Mills wrote:
In an earlier contribution to this discussion, Ed Sirett wrote: On Mon, 03 Apr 2006 15:17:24 +0100, Roger Mills wrote: In an earlier contribution to this discussion, Ed Sirett wrote: Imperial copper tube is fairly rare IME. ??? It's something to watch out for when you think the pipework is around 35-40 years old. I might come across it a few times a year and I'm dealing with pipes at least 2 days a week. Well I suppose that I may be atypical - but I've had it in both houses which I've owned, and in my father-in-law's house - all built in the 1960's. So I suspect that there's still a lot of it about even if you don't personally encounter it very often. There is very little late 1960's early 1970s new build around here. I therefore probably only encounter it in places that had substantial work done in that period. -- Ed Sirett - Property maintainer and registered gas fitter. The FAQ for uk.diy is at http://www.diyfaq.org.uk Gas fitting FAQ http://www.makewrite.demon.co.uk/GasFitting.html Sealed CH FAQ http://www.makewrite.demon.co.uk/SealedCH.html Choosing a Boiler FAQ http://www.makewrite.demon.co.uk/BoilerChoice.html |
#24
Posted to uk.d-i-y
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Pretty stupid push-fit question
"Roger Mills" wrote in message ... In an earlier contribution to this discussion, Brian Sharrock wrote: from memory ... which might be fallible ... it was about 1969~1970 ish that the change over from English measurements to metric measurements happened in copper tubing. I think it was probably later than that. I installed central heating in my previous house in 1969 using 1/2" and 3/4" copper pipe 1971. |
#25
Posted to uk.d-i-y
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Pretty stupid push-fit question
On Mon, 03 Apr 2006 17:16:19 -0700, zymurgy wrote:
Ed Sirett wrote: Roger Mills wrote: Ed Sirett wrote: Imperial copper tube is fairly rare IME. It's something to watch out for when you think the pipework is around 35-40 years old. I might come across it a few times a year and I'm dealing with pipes at least 2 days a week. It's quite easily identified tho. IME imperial pipes have big chunky hex fittings, rather than the neater more modern compression fittings (e.g the ones with the 'ears') I've found so many different styles of compression fittings in metric I can't identify pipe by what's used on it. The bottom line is the size: 1/2" is very slightly bigger than 15mm but as near as dammit, whereas is smaller than 22mm by enough to make a pushfit unreliable. For compression the correct thing is to use a 3/4" olive (available from BES and real plumbers merchants) but I've got away with cranking up a 22mm olive really tight. Copper may be a better bet for this sort of abuse than brass because it's softer. |
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