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Metalworking (rec.crafts.metalworking) Discuss various aspects of working with metal, such as machining, welding, metal joining, screwing, casting, hardening/tempering, blacksmithing/forging, spinning and hammer work, sheet metal work. |
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#1
Posted to rec.crafts.metalworking
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Electrical - what's wrong with this?
I don't mean technically or Code, but we have a well and we have noway of knowing when there is a pump problem until there is no water. So here's my thinking.
It is pretty common for the water to wear a hole in the lowest pipe about 10" above the pump connection. When the pumps shuts off, this then drains down the water head so the pump needs to run again. This happens in pump-cycles until the hole is big enough and we run out of water. We are not aware of the increased frequency of the pump running until the pump output matches the hole exhaust capability. So, not only do we have to pay $700 to have the pump lifted and pipe replaced, we will have paid a bunch on wasted power as it can be a few months before the hole is big enough to cause a noticeable issue. I have one of these and very pleased with it. http://www.amazon.com/TS-836A-Energy...ds=power+meter I am thinking of getting one of these and it's female counterpart. http://www.amazon.com/Leviton-000-51...rds=power+plug Then wire the plug set into one leg of the pump 240 and Neutral and plug the meter in between. I can check the Cost on the meter regularly and will know if there is trouble brewing. **Helpful** thoughts? Dave |
#2
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Electrical - what's wrong with this?
"Dave, I can't do that" fired this volley in
: It is pretty common for the water to wear a hole in the lowest pipe about 10" above the pump connection. When the pumps shuts off, this then drains down the water head so the pump needs to run again. Dave, the first thing (not electrical, sorry) that comes to mind is to deal differently with what must be a LOT of sand in your water! Just replacing the bottom 10' of the lift pipe with something more abrasion-resistant would seem to be a good thing. I personally don't have a submersible, anymore. 'Had one at my last house, but now, although our well is 180' deep, the water table is within 10' of the surface, so we use a common above-ground jet pump. But when I had a submersible, it lasted 23 years in regular residential service (until we move...), along with some irrigation. We had limestone formations, not sand. I'm sure someone else has had this problem, and the well/pump industry likely has a solution to it. (dunno... something like a 'droppable' HDPE liner, or something, so it can be serviced without pulling the whole pipe string). If the HDPE were the full length of the string, it could probably be replaced by the homeowner at less cost that hiring it out. Lloyd |
#3
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Electrical - what's wrong with this?
On Fri, 03 Jul 2015 08:53:06 -0700, Dave, I can't do that wrote:
I don't mean technically or Code, but we have a well and we have noway of knowing when there is a pump problem until there is no water. So here's my thinking. It is pretty common for the water to wear a hole in the lowest pipe about 10" above the pump connection. When the pumps shuts off, this then drains down the water head so the pump needs to run again. This happens in pump-cycles until the hole is big enough and we run out of water. We are not aware of the increased frequency of the pump running until the pump output matches the hole exhaust capability. So, not only do we have to pay $700 to have the pump lifted and pipe replaced, we will have paid a bunch on wasted power as it can be a few months before the hole is big enough to cause a noticeable issue. I have one of these and very pleased with it. http://www.amazon.com/TS-836A-Energy...ty-Monitor/dp/ B00E945SJG/ref=sr_1_2?ie=UTF8&qid=1435938092&sr=8-2&keywords=power+meter I am thinking of getting one of these and it's female counterpart. http://www.amazon.com/Leviton-000-51...r-Grounded/dp/ B000FKBZ7M/ref=sr_1_15?ie=UTF8&qid=1435938149&sr=8-15&keywords=power+plug Then wire the plug set into one leg of the pump 240 and Neutral and plug the meter in between. I can check the Cost on the meter regularly and will know if there is trouble brewing. **Helpful** thoughts? Dave Your fancy wattmeter will only read half of what the pump is actually using. You probably knew that already. Make sure your fancy wattmeter can stand the current draw -- a normal outlet is 10 or 15 amps; your pump may need much more. All you really need is an instrument that'll show accrued time. If you could get an old mechanical clock that had a "days" dial then you could use that. Or just an old mechanical clock, if you looked at it often enough. If you don't like my mechanical clock idea, and if your wattmeter gizmo can't handle the pump current, wire a socket into one leg of the pump supply as planned (if you want to be Electrically Correct fuse it for 15 A), plug your gizmo into it, and plug a load, like a 100W light bulb, into the gizmo. Then your total energy usage will be a measure of time. It won't be perfect, and you'll need to make sure that your light bulb isn't burnt out, but you'll get a reading on pump usage. For that matter, if there's someplace in your house close to the pump circuit where you're to be found often, just put the light there and keep an eye on it. Even if the pump house is outside, a 100W light bulb should be visible most of the time. -- www.wescottdesign.com |
#4
Posted to rec.crafts.metalworking
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Electrical - what's wrong with this?
On Fri, 3 Jul 2015 08:53:06 -0700 (PDT), "Dave, I can't do that"
wrote: I don't mean technically or Code, but we have a well and we have noway of knowing when there is a pump problem until there is no water. So here's my thinking. It is pretty common for the water to wear a hole in the lowest pipe about 10" above the pump connection. When the pumps shuts off, this then drains down the water head so the pump needs to run again. This happens in pump-cycles until the hole is big enough and we run out of water. We are not aware of the increased frequency of the pump running until the pump output matches the hole exhaust capability. So, not only do we have to pay $700 to have the pump lifted and pipe replaced, we will have paid a bunch on wasted power as it can be a few months before the hole is big enough to cause a noticeable issue. I have one of these and very pleased with it. http://www.amazon.com/TS-836A-Energy...ds=power+meter I am thinking of getting one of these and it's female counterpart. http://www.amazon.com/Leviton-000-51...rds=power+plug Then wire the plug set into one leg of the pump 240 and Neutral and plug the meter in between. I can check the Cost on the meter regularly and will know if there is trouble brewing. **Helpful** thoughts? Dave May or may not work, depending on whether the meter looks at the hot or neutral leg to sense current. It'd be easier to install a running-time meter in the pressure switch circuit, and less worries about code compliance. For example: http://www.ebay.com/itm/271092460905 -- Ned Simmons |
#5
Posted to rec.crafts.metalworking
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Electrical - what's wrong with this?
"Dave, I can't do that" wrote in message
... I don't mean technically or Code, but we have a well and we have noway of knowing when there is a pump problem until there is no water. So here's my thinking. It is pretty common for the water to wear a hole in the lowest pipe about 10" above the pump connection. When the pumps shuts off, this then drains down the water head so the pump needs to run again. This happens in pump-cycles until the hole is big enough and we run out of water. We are not aware of the increased frequency of the pump running until the pump output matches the hole exhaust capability. So, not only do we have to pay $700 to have the pump lifted and pipe replaced, we will have paid a bunch on wasted power as it can be a few months before the hole is big enough to cause a noticeable issue. I have one of these and very pleased with it. http://www.amazon.com/TS-836A-Energy...ds=power+meter I am thinking of getting one of these and it's female counterpart. http://www.amazon.com/Leviton-000-51...rds=power+plug Then wire the plug set into one leg of the pump 240 and Neutral and plug the meter in between. I can check the Cost on the meter regularly and will know if there is trouble brewing. **Helpful** thoughts? Dave I have a Kill-A-Watt-EZ on the fridge and yesterday I also datalogged its temperature cycling and run current, to determine the duty cycle and performance margin at 72F room temperature. It costs me $3.52 per month right now. In my experience, doing the same thing in midwinter with my backup electric heat, this LED that turns on when current flows would be more useful if you can locate it in your normal living space. http://www.amazon.com/CR-Magnetics-R.../dp/B006K3O1MY -jsw |
#6
Posted to rec.crafts.metalworking
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Electrical - what's wrong with this?
On 07/03/2015 10:53 AM, Dave, I can't do that wrote:
.... It is pretty common for the water to wear a hole in the lowest pipe about 10" above the pump connection. ... I'm like Lloyd--whassup w/ that!!!???? I'd fix the problem, not monitor the symptoms. But, as another one or two said, to monitor the pump what you really want is simply a run-time indicator. -- |
#7
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Electrical - what's wrong with this?
On Fri, 03 Jul 2015 11:04:06 -0500, Lloyd E. Sponenburgh wrote:
"Dave, I can't do that" fired this volley in : It is pretty common for the water to wear a hole in the lowest pipe about 10" above the pump connection. When the pumps shuts off, this then drains down the water head so the pump needs to run again. Dave, the first thing (not electrical, sorry) that comes to mind is to deal differently with what must be a LOT of sand in your water! D'oh. I was going to mention that, and forgot. +1. We've replaced our well pump once in our ten years here, and that was due to rank stupidity, involving a severe water leak that went unnoticed and pumped the well dry. -- Tim Wescott Wescott Design Services http://www.wescottdesign.com |
#8
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Electrical - what's wrong with this?
On Friday, July 3, 2015 at 9:04:09 AM UTC-7, Lloyd E. Sponenburgh wrote:
Thanks Lloyd, Not sand it is just normal water abrasion. It's why pebbles in streams are round. Well is 430-ft, water level last checked 316-ft. I two well-company people seriously doubt it is sand at the level. I asked and they said, normal water erosion. I defer to them and unfortunately no band-aid process available as the pipe is in 21' lengths with couplings joining each length. Many out here have the problem that's why the well-companies can charge 700-bucks for three hours work. I am looking into continuous pipe and support cables for the next time that way I can lift it myself. It'll only cost $350 to lift it, but I bet they can think of a good reason to charge 700 anyway. Capitalism and a captive market. Thanks anyway though. |
#9
Posted to rec.crafts.metalworking
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Electrical - what's wrong with this?
On Fri, 03 Jul 2015 12:28:23 -0400, Ned Simmons wrote:
On Fri, 3 Jul 2015 08:53:06 -0700 (PDT), "Dave, I can't do that" wrote: I don't mean technically or Code, but we have a well and we have noway of knowing when there is a pump problem until there is no water. So here's my thinking. It is pretty common for the water to wear a hole in the lowest pipe about 10" above the pump connection. When the pumps shuts off, this then drains down the water head so the pump needs to run again. This happens in pump-cycles until the hole is big enough and we run out of water. We are not aware of the increased frequency of the pump running until the pump output matches the hole exhaust capability. So, not only do we have to pay $700 to have the pump lifted and pipe replaced, we will have paid a bunch on wasted power as it can be a few months before the hole is big enough to cause a noticeable issue. I have one of these and very pleased with it. http://www.amazon.com/TS-836A-Energy...ty-Monitor/dp/ B00E945SJG/ref=sr_1_2?ie=UTF8&qid=1435938092&sr=8-2&keywords=power+meter I am thinking of getting one of these and it's female counterpart. http://www.amazon.com/Leviton-000-51...r-Grounded/dp/ B000FKBZ7M/ref=sr_1_15?ie=UTF8&qid=1435938149&sr=8-15&keywords=power+plug Then wire the plug set into one leg of the pump 240 and Neutral and plug the meter in between. I can check the Cost on the meter regularly and will know if there is trouble brewing. **Helpful** thoughts? Dave May or may not work, depending on whether the meter looks at the hot or neutral leg to sense current. It'd be easier to install a running-time meter in the pressure switch circuit, and less worries about code compliance. For example: http://www.ebay.com/itm/271092460905 D'oh. I should have known you could get those off the shelf. -- Tim Wescott Wescott Design Services http://www.wescottdesign.com |
#10
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Electrical - what's wrong with this?
On Friday, July 3, 2015 at 9:13:48 AM UTC-7, Tim Wescott wrote:
Make sure your fancy wattmeter can stand the current draw -- a normal outlet is 10 or 15 amps; your pump may need much more. It's a 240v 1.5hp motor (1134-Watt) and I doubt the meter is directly in series with the load. Might be wrong, have been before. Or just an old mechanical clock, if you looked at it often Great idea, thanks, I will see what's at the local junk shops next time in town. Must surely be able to find one of those old flap-clocks. The pump, supply and connections are 100-feet from the house and not visible and, I would prefer not to be adding 100-Watts extra to the costs. I am going with the flap-clock, if I can find one. Brilliant thought, thanks again. Dave |
#11
Posted to rec.crafts.metalworking
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Electrical - what's wrong with this?
"Dave, I can't do that" fired this volley in
: Not sand it is just normal water abrasion. It's why pebbles in streams are round. NOSIR! Pebbles in streams are round because they abrade against other pebbles and sand. If "normal water erosion" is the culprit, then you either have VERY alkaline or very acid water. My pump, on a plain string of iron pipe, lasted 23 years (and probably more) with no such leaks. Water, all by itself, ain't very abrasive, Dave. Yeah... it can slowly erode things, but very, very slowly, and certainly not through 3/16" to 1/4" of iron pipe in the time you're quoting. You have something else going on down there. Besides... even if 'normal' erosion were the problem, why not seek a solution to the problem, instead of a way to monitor it? Lloyd |
#12
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Electrical - what's wrong with this?
"Lloyd E. Sponenburgh" lloydspinsidemindspring.com fired this volley in
. 4.170: in the time you're quoting. Well... that was presumptuous, because you didn't QUOTE a time! But if it's enough of a problem to monitor, it must occur pretty often. (sorry for the 'mental leap') L |
#13
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Electrical - what's wrong with this?
On Friday, July 3, 2015 at 11:22:17 AM UTC-7, Lloyd E. Sponenburgh wrote:
You have something else going on down there. Besides... even if 'normal' erosion were the problem, why not seek a solution to the problem, instead of a way to monitor it? The ONLY solution is to replace the pipe. Which you may not be aware is quite light wall pipe, more like tubing and also they have PVC pipes as well. Pun intended. As it happens the PVC lasts longer than the gal-steel and I had them put PVC as the bottom piece this time. I think the well people out here know what they are talking about. I am just the messenger. If they tell me it is not sand and it is water then for me, it is water. There are thousands of wells out here. |
#14
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Electrical - what's wrong with this?
"Dave, I can't do that" fired this volley in
: The ONLY solution is to replace the pipe. Which you may not be aware is quite light wall pipe, suggestion_mode Whatever... I'm just betting if you did even the most minor bit of "looking around" instead of asking advice on a usenet forum, you'd probably find a ready-made solution to your problem. But it's your problem. Handle it any way you want. /suggestion_mode Lloyd |
#15
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Electrical - what's wrong with this?
On Fri, 3 Jul 2015 11:10:34 -0700 (PDT), "Dave, I can't do that"
wrote: On Friday, July 3, 2015 at 9:04:09 AM UTC-7, Lloyd E. Sponenburgh wrote: Thanks Lloyd, Not sand it is just normal water abrasion. It's why pebbles in streams are round. Pebbles in streams are round because they roll around against each other in the running water. Water itself is a lubricant, not an abrasive Well is 430-ft, water level last checked 316-ft. I two well-company people seriously doubt it is sand at the level. I asked and they said, normal water erosion. I defer to them and unfortunately no band-aid process available as the pipe is in 21' lengths with couplings joining each length. Many out here have the problem that's why the well-companies can charge 700-bucks for three hours work. I am looking into continuous pipe and support cables for the next time that way I can lift it myself. It'll only cost $350 to lift it, but I bet they can think of a good reason to charge 700 anyway. Capitalism and a captive market. Thanks anyway though. |
#16
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Electrical - what's wrong with this?
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#17
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Electrical - what's wrong with this?
"Lloyd E. Sponenburgh" lloydspinsidemindspring.com wrote in message . 4.170... fired this volley in : Pebbles in streams are round because they roll around against each other in the running water. Water itself is a lubricant, not an abrasive What I said, Clare. But the "Well Guys" (who just MIGHT have a financial interest in the results... nah...) said "No way -- WATER is an abrasive!". So it MUST be true! G L This claims that water becomes more corrosive where it mixes with oxygen: http://inspectapedia.com/water/Well_Casing_Leaks.php Differing oxygen levels are said to be the reason why stainless corrodes in some areas under a boat. The concentration gradient creates a weak battery. -jsw -jsw |
#18
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Electrical - what's wrong with this?
"Jim Wilkins" fired this volley in news:mn70j0$k1e
: This claims that water becomes more corrosive where it mixes with oxygen: http://inspectapedia.com/water/Well_Casing_Leaks.php Differing oxygen levels are said to be the reason why stainless corrodes in some areas under a boat. The concentration gradient creates a weak battery. If his pump is moving air as well as water, there's a LOT more wrong than just water 'abrasion'. This whole subject is silly (no... STUPID). You solve the problem, not 'monitor the problem. Our friggin' government is in LOVE with "monitoring the problems", but they FIX nothing. 'Seems like this is a 'government solution'. duh... L |
#19
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Electrical - what's wrong with this?
On Fri, 3 Jul 2015 18:00:57 -0400, "Jim Wilkins"
wrote: "Lloyd E. Sponenburgh" lloydspinsidemindspring.com wrote in message .4.170... fired this volley in : Pebbles in streams are round because they roll around against each other in the running water. Water itself is a lubricant, not an abrasive What I said, Clare. But the "Well Guys" (who just MIGHT have a financial interest in the results... nah...) said "No way -- WATER is an abrasive!". So it MUST be true! G L This claims that water becomes more corrosive where it mixes with oxygen: http://inspectapedia.com/water/Well_Casing_Leaks.php Differing oxygen levels are said to be the reason why stainless corrodes in some areas under a boat. The concentration gradient creates a weak battery. -jsw Nope. Stainless corrodes because of a lack of oxygen in the water, while the article seemed to say that water near the surface contained more oxygen. http://www.boatus.com/boattech/artic...-corrosion.asp (crevice corrosion) or http://www.passagemaker.com/channels...and-corrosion/ But as water is made up of oxygen, in part, I suspect that the term should be "free oxygen". -- cheers, John B. |
#20
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Electrical - what's wrong with this?
On 7/3/2015 2:53 PM, Dave, I can't do that wrote:
On Friday, July 3, 2015 at 11:22:17 AM UTC-7, Lloyd E. Sponenburgh wrote: You have something else going on down there. .... Indeed! ... I think the well people out here know what they are talking about. I am just the messenger. If they tell me it is not sand and it is water then for me, it is water. There are thousands of wells out here. There are thousands of wells around here, too, and I have never heard of a pipe being worn through. I've been in my house 42 years and have replaced the well pipe twice, but not because of any holes. As for the well people, I'd guess that it's what they've always heard and nobody has a better (real) answer. Bob |
#21
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Electrical - what's wrong with this?
John B. fired this volley in
: But as water is made up of oxygen, in part, I suspect that the term should be "free oxygen". As an ersatz chemist, I'd have to say "dissolved oxygen". Lloyd |
#22
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Electrical - what's wrong with this?
Bob Engelhardt fired this volley in
: There are thousands of wells around here, too, and I have never heard of a pipe being worn through. I've been in my house 42 years and have replaced the well pipe twice, but not because of any holes. ALL the properties within a 10 mile radius north and east and 28 miles south and west are on wells. Tens of thousands. The cited problem is NOT a problem unless you're pumping sand or have been sold tinfoil tubing in replacement for "pipe". Lloyd |
#23
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Electrical - what's wrong with this?
On Fri, 03 Jul 2015 19:27:56 -0400, Bob Engelhardt
wrote: On 7/3/2015 2:53 PM, Dave, I can't do that wrote: On Friday, July 3, 2015 at 11:22:17 AM UTC-7, Lloyd E. Sponenburgh wrote: You have something else going on down there. ... Indeed! ... I think the well people out here know what they are talking about. I am just the messenger. If they tell me it is not sand and it is water then for me, it is water. There are thousands of wells out here. There are thousands of wells around here, too, and I have never heard of a pipe being worn through. I've been in my house 42 years and have replaced the well pipe twice, but not because of any holes. As for the well people, I'd guess that it's what they've always heard and nobody has a better (real) answer. Bob The company I work for every morning insures a lot of "well people", as well as a lot of "alternative health practitioners." They both have about the same level of "real" knowledge, on the whole. They are all "good people" - the well people drill a lot of good wells, and the alternative health practitioners - RMTs in particular, give a lot of people pain relief - but their explanations of how things work generally have very little scientific basis. |
#24
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Electrical - what's wrong with this?
On 2015-07-03, Dave, I can't do that wrote:
I don't mean technically or Code, but we have a well and we have noway of knowing when there is a pump problem until there is no water. So here's my thinking. It is pretty common for the water to wear a hole in the lowest pipe about 10" above the pump connection. When the pumps shuts off, this then drains down the water head so the pump needs to run again. This happens in pump-cycles until the hole is big enough and we run out of water. We are not aware of the increased frequency of the pump running until the pump output matches the hole exhaust capability. So, not only do we have to pay $700 to have the pump lifted and pipe replaced, we will have paid a bunch on wasted power as it can be a few months before the hole is big enough to cause a noticeable issue. Is it possible to get glass-lined pipe, so the holes won't appear? I know that there are very short ones for going between a hot water heater and the lines, to minimize electrolytic damage. I have one of these and very pleased with it. http://www.amazon.com/TS-836A-Energy...ds=power+meter Looks like a clone of the Kill-A-Watt which has been sold for some time now. I have one, but the maximum current is 15A, and your pump motor may well draw more than that -- since it has a lot of work to do to get the water up to usable level. And -- the KWH readings would be off by a factor of two, as it is assuming 120 VAC not 240 VAC. And the manual for mine suggests that there are 240VAC versions as well. O.K. Here is someone who had them, but is currently out of stock: http://www.amazon.com/Electric-Meter-100A-Volt-3-Wire/dp/B00GMZRXE8 This one, however, can handle 240 VAC and current up to 50A. http://www.amazon.com/Efergy-Elite-Wireless-Electricity-Monitor/dp/B003XOXU02/ref=pd_sbs_328_3/179-7600238-8684324?ie=UTF8&refRID=033ZF6P6N7RMW17Z397Q I am thinking of getting one of these and it's female counterpart. http://www.amazon.com/Leviton-000-51...rds=power+plug Then wire the plug set into one leg of the pump 240 and Neutral and plug the meter in between. I can check the Cost on the meter regularly and will know if there is trouble brewing. This is a bit of a kluge, and rather dangerous as it would interrupt only *one* side of the 240 VAC when unplugged. However, the second one which I pointed to is still sold, and is two parts -- one part in the breaker box (where you can clamp it on the leads for your pump breaker's output only), *and* you can read it from elsewhere in the house. It is somewhat more expensive, but I think worth it over time. I don't have the manual for it, but I suspect that you will want to do something like reset it once a month after noting that month's usage and perhaps keep a log of how much, too. Probably not a bad idea to change the receiver's battery just after noting your reading and before resetting. An alternative might be to have a relay sensing the current drawn by the motor and starting a timer, and if the pump runs more than a certain pre-set time, to sound an alarm -- or, (with another timer started when the current drops out) sound an alarm if the pump re-starts too soon. **Helpful** thoughts? I hope that these will be helpful. Good Luck, DoN. -- Remove oil spill source from e-mail Email: | (KV4PH) Voice (all times): (703) 938-4564 (too) near Washington D.C. | http://www.d-and-d.com/dnichols/DoN.html --- Black Holes are where God is dividing by zero --- |
#25
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Electrical - what's wrong with this?
"John B." wrote in message
... On Fri, 3 Jul 2015 18:00:57 -0400, "Jim Wilkins" wrote: "Lloyd E. Sponenburgh" lloydspinsidemindspring.com wrote in message 8.4.170... fired this volley in : Pebbles in streams are round because they roll around against each other in the running water. Water itself is a lubricant, not an abrasive What I said, Clare. But the "Well Guys" (who just MIGHT have a financial interest in the results... nah...) said "No way -- WATER is an abrasive!". So it MUST be true! G L This claims that water becomes more corrosive where it mixes with oxygen: http://inspectapedia.com/water/Well_Casing_Leaks.php Differing oxygen levels are said to be the reason why stainless corrodes in some areas under a boat. The concentration gradient creates a weak battery. -jsw Nope. Stainless corrodes because of a lack of oxygen in the water, while the article seemed to say that water near the surface contained more oxygen. http://www.boatus.com/boattech/artic...-corrosion.asp (crevice corrosion) or http://www.passagemaker.com/channels...and-corrosion/ But as water is made up of oxygen, in part, I suspect that the term should be "free oxygen". -- cheers, John B. Here is the relevant corrosion mechanism those articles omitted: https://en.wikipedia.org/wiki/Concentration_cell "Concentration cell corrosion occurs when two or more areas of a metal surface are in contact with different concentrations of the same solution." -jsw |
#26
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Electrical - what's wrong with this?
"Jim Wilkins" fired this volley in news:mn7cqm$2di
: Here is the relevant corrosion mechanism those articles omitted: https://en.wikipedia.org/wiki/Concentration_cell "Concentration cell corrosion occurs when two or more areas of a metal surface are in contact with different concentrations of the same solution." Jim, First, the phenonemnon you're referring to almost never happens in a 'mixing' environment. Second, the degree of 'concentration' must be significant -- not horribly high, but higher than what you'd get from differences in the stream in a well. Third... nah... not in a well. You don't see those sorts of things going on in a water well intended for human consumption. This case is pure-and-simple mechanical abrasion from particulates. I'll bet there's a 4' deep 'sand pack' in that lift pipe before it turns on, which gets veritably BLASTED against the side of the pipe for a second or two every time the them pump comes on. Lloyd |
#27
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Electrical - what's wrong with this?
On 4 Jul 2015 01:29:40 GMT, "DoN. Nichols"
wrote: On 2015-07-03, Dave, I can't do that wrote: I don't mean technically or Code, but we have a well and we have noway of knowing when there is a pump problem until there is no water. So here's my thinking. It is pretty common for the water to wear a hole in the lowest pipe about 10" above the pump connection. When the pumps shuts off, this then drains down the water head so the pump needs to run again. This happens in pump-cycles until the hole is big enough and we run out of water. We are not aware of the increased frequency of the pump running until the pump output matches the hole exhaust capability. So, not only do we have to pay $700 to have the pump lifted and pipe replaced, we will have paid a bunch on wasted power as it can be a few months before the hole is big enough to cause a noticeable issue. Is it possible to get glass-lined pipe, so the holes won't appear? I know that there are very short ones for going between a hot water heater and the lines, to minimize electrolytic damage. I have one of these and very pleased with it. http://www.amazon.com/TS-836A-Energy...ds=power+meter Looks like a clone of the Kill-A-Watt which has been sold for some time now. I have one, but the maximum current is 15A, and your pump motor may well draw more than that -- since it has a lot of work to do to get the water up to usable level. And -- the KWH readings would be off by a factor of two, as it is assuming 120 VAC not 240 VAC. And the manual for mine suggests that there are 240VAC versions as well. O.K. Here is someone who had them, but is currently out of stock: http://www.amazon.com/Electric-Meter-100A-Volt-3-Wire/dp/B00GMZRXE8 This one, however, can handle 240 VAC and current up to 50A. http://www.amazon.com/Efergy-Elite-Wireless-Electricity-Monitor/dp/B003XOXU02/ref=pd_sbs_328_3/179-7600238-8684324?ie=UTF8&refRID=033ZF6P6N7RMW17Z397Q I am thinking of getting one of these and it's female counterpart. http://www.amazon.com/Leviton-000-51...rds=power+plug Then wire the plug set into one leg of the pump 240 and Neutral and plug the meter in between. I can check the Cost on the meter regularly and will know if there is trouble brewing. This is a bit of a kluge, and rather dangerous as it would interrupt only *one* side of the 240 VAC when unplugged. However, the second one which I pointed to is still sold, and is two parts -- one part in the breaker box (where you can clamp it on the leads for your pump breaker's output only), *and* you can read it from elsewhere in the house. It is somewhat more expensive, but I think worth it over time. I don't have the manual for it, but I suspect that you will want to do something like reset it once a month after noting that month's usage and perhaps keep a log of how much, too. Probably not a bad idea to change the receiver's battery just after noting your reading and before resetting. An alternative might be to have a relay sensing the current drawn by the motor and starting a timer, and if the pump runs more than a certain pre-set time, to sound an alarm -- or, (with another timer started when the current drops out) sound an alarm if the pump re-starts too soon. **Helpful** thoughts? I hope that these will be helpful. Good Luck, DoN. The 120 volt one won't work It needs to measure line to neutral - and the 240 volt pump does not use the neutral. You need a 240 volt kill-a- watt or clone. They are readilly available in the UK and Europe where 240 line to line is atandard |
#28
Posted to rec.crafts.metalworking
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Electrical - what's wrong with this?
On 2015-07-03, Dave, I can't do that wrote:
On Friday, July 3, 2015 at 9:13:48 AM UTC-7, Tim Wescott wrote: Make sure your fancy wattmeter can stand the current draw -- a normal outlet is 10 or 15 amps; your pump may need much more. It's a 240v 1.5hp motor (1134-Watt) and I doubt the meter is directly in series with the load. Might be wrong, have been before. O.K. Less than 5 Amps then (except perhaps during starting surges). But the typical Kill-A-Watt both measures the voltage (across the neutral-to-hot span) and the current delivered through the hot. The latter could be with the current fed through a shunt, or the hot wire threaded through a current transformer. But it *does* have to measure the current as well as the voltage to calculate the watts load. Or just an old mechanical clock, if you looked at it often Great idea, thanks, I will see what's at the local junk shops next time in town. Must surely be able to find one of those old flap-clocks. The pump, supply and connections are 100-feet from the house and not visible and, I would prefer not to be adding 100-Watts extra to the costs. Presumably, the power comes from the breaker box in the house, so a relay could sense the current and turn on a lamp -- or a clock. And the lamp doesn't have to be a big 100W one, a small LED light could be sufficient to see. Mount it where you look when sitting down a lot. Perhaps over a TV if you watch a lot of TV. I am going with the flap-clock, if I can find one. Brilliant thought, thanks again. Best if you control it with a relay, so it can be in the house where you can see it frequently -- and perhaps reset it to 00:00 every night. Good Luck, DoN. -- Remove oil spill source from e-mail Email: | (KV4PH) Voice (all times): (703) 938-4564 (too) near Washington D.C. | http://www.d-and-d.com/dnichols/DoN.html --- Black Holes are where God is dividing by zero --- |
#29
Posted to rec.crafts.metalworking
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Electrical - what's wrong with this?
"DoN. Nichols" wrote in message
... On 2015-07-03, Dave, I can't do that wrote: I don't mean technically or Code, but we have a well and we have noway of knowing when there is a pump problem until there is no water. So here's my thinking. It is pretty common for the water to wear a hole in the lowest pipe about 10" above the pump connection. When the pumps shuts off, this then drains down the water head so the pump needs to run again. This happens in pump-cycles until the hole is big enough and we run out of water. We are not aware of the increased frequency of the pump running until the pump output matches the hole exhaust capability. So, not only do we have to pay $700 to have the pump lifted and pipe replaced, we will have paid a bunch on wasted power as it can be a few months before the hole is big enough to cause a noticeable issue. Is it possible to get glass-lined pipe, so the holes won't appear? I know that there are very short ones for going between a hot water heater and the lines, to minimize electrolytic damage. I have one of these and very pleased with it. http://www.amazon.com/TS-836A-Energy...ds=power+meter Looks like a clone of the Kill-A-Watt which has been sold for some time now. I have one, but the maximum current is 15A, and your pump motor may well draw more than that -- since it has a lot of work to do to get the water up to usable level. And -- the KWH readings would be off by a factor of two, as it is assuming 120 VAC not 240 VAC. And the manual for mine suggests that there are 240VAC versions as well. O.K. Here is someone who had them, but is currently out of stock: http://www.amazon.com/Electric-Meter-100A-Volt-3-Wire/dp/B00GMZRXE8 This one, however, can handle 240 VAC and current up to 50A. http://www.amazon.com/Efergy-Elite-Wireless-Electricity-Monitor/dp/B003XOXU02/ref=pd_sbs_328_3/179-7600238-8684324?ie=UTF8&refRID=033ZF6P6N7RMW17Z397Q I am thinking of getting one of these and it's female counterpart. http://www.amazon.com/Leviton-000-51...rds=power+plug Then wire the plug set into one leg of the pump 240 and Neutral and plug the meter in between. I can check the Cost on the meter regularly and will know if there is trouble brewing. This is a bit of a kluge, and rather dangerous as it would interrupt only *one* side of the 240 VAC when unplugged. However, the second one which I pointed to is still sold, and is two parts -- one part in the breaker box (where you can clamp it on the leads for your pump breaker's output only), *and* you can read it from elsewhere in the house. It is somewhat more expensive, but I think worth it over time. I don't have the manual for it, but I suspect that you will want to do something like reset it once a month after noting that month's usage and perhaps keep a log of how much, too. Probably not a bad idea to change the receiver's battery just after noting your reading and before resetting. An alternative might be to have a relay sensing the current drawn by the motor and starting a timer, and if the pump runs more than a certain pre-set time, to sound an alarm -- or, (with another timer started when the current drops out) sound an alarm if the pump re-starts too soon. **Helpful** thoughts? I hope that these will be helpful. Good Luck, DoN. The software that comes with the Radio Shack PC-interfaced meter 220-0087 auto-scales the graph of its readings on a computer, so you can connect it to a clamp-on amp probe or split-core current transformer http://www.amazon.com/0-01-120A-0-5M.../dp/B005FIFT4E on the pump lead and record the pump cycling on and off. http://comingsoon.radioshack.com/rad...r/2200087.html Try it in the store, they don't have the best quality control history. |
#30
Posted to rec.crafts.metalworking
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Electrical - what's wrong with this?
"Lloyd E. Sponenburgh" lloydspinsidemindspring.com wrote in message
. 4.170... "Jim Wilkins" fired this volley in news:mn7cqm$2di : Here is the relevant corrosion mechanism those articles omitted: https://en.wikipedia.org/wiki/Concentration_cell "Concentration cell corrosion occurs when two or more areas of a metal surface are in contact with different concentrations of the same solution." Jim, First, the phenonemnon you're referring to almost never happens in a 'mixing' environment. Second, the degree of 'concentration' must be significant -- not horribly high, but higher than what you'd get from differences in the stream in a well. Third... nah... not in a well. You don't see those sorts of things going on in a water well intended for human consumption. This case is pure-and-simple mechanical abrasion from particulates. I'll bet there's a 4' deep 'sand pack' in that lift pipe before it turns on, which gets veritably BLASTED against the side of the pipe for a second or two every time the them pump comes on. Lloyd http://inspectapedia.com/water/Well_Casing_Leaks.php Did you notice this: "On the other hand, as corrosion in a well casing may be local to the usual top of the static head in the well, the repair sleeve approach may make sense." That's the outer casing where water meets air, not within the delivery pipe. -jsw |
#31
Posted to rec.crafts.metalworking
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Electrical - what's wrong with this?
On Fri, 3 Jul 2015 08:53:06 -0700 (PDT), "Dave, I can't do that"
wrote: I don't mean technically or Code, but we have a well and we have noway of knowing when there is a pump problem until there is no water. So here's my thinking. It is pretty common for the water to wear a hole in the lowest pipe about 10" above the pump connection. When the pumps shuts off, this then drains down the water head so the pump needs to run again. So why haven't you put a rubber baby buggy bumper around the pipe there during one of these repair sessions, Dave? This would head off the repair instead of just letting you know when it wore through. I have seen bumpers you can install on the flexi poly line so it doesn't wear through. (Where the hell did I see that?) Googlit. This happens in pump-cycles until the hole is big enough and we run out of water. We are not aware of the increased frequency of the pump running until the pump output matches the hole exhaust capability. So, not only do we have to pay $700 to have the pump lifted and pipe replaced, we will have paid a bunch on wasted power as it can be a few months before the hole is big enough to cause a noticeable issue. I have one of these and very pleased with it. http://www.amazon.com/TS-836A-Energy...ds=power+meter Wattmeters are great. I have a 3P Kill-a-Watt and check every new toy I buy with it. It's interesting that all of the 9w LED bulbs are only taking anywhere from 4.5 to 6w of draw, but they're bloody bright, so it's a moot point to me. I am thinking of getting one of these and it's female counterpart. http://www.amazon.com/Leviton-000-51...rds=power+plug Then wire the plug set into one leg of the pump 240 and Neutral and plug the meter in between. I can check the Cost on the meter regularly and will know if there is trouble brewing. **Helpful** thoughts? I'd rather fix the problem NOW than just see it developing sooner. How about you? -- Another belief of mine: that everyone else my age is an adult, whereas I am merely in disguise. -- Margaret Atwood |
#32
Posted to rec.crafts.metalworking
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Electrical - what's wrong with this?
On Fri, 3 Jul 2015 11:10:34 -0700 (PDT), "Dave, I can't do that"
wrote: On Friday, July 3, 2015 at 9:04:09 AM UTC-7, Lloyd E. Sponenburgh wrote: Thanks Lloyd, Not sand it is just normal water abrasion. It's why pebbles in streams are round. This is an INTERNAL abrasion? OK, forget what I already wrote. Well is 430-ft, water level last checked 316-ft. I two well-company people seriously doubt it is sand at the level. I asked and they said, normal water erosion. I defer to them and unfortunately no band-aid process available as the pipe is in 21' lengths with couplings joining each length. Many out here have the problem that's why the well-companies can charge 700-bucks for three hours work. I am looking into continuous pipe and support cables for the next time that way I can lift it myself. It'll only cost $350 to lift it, but I bet they can think of a good reason to charge 700 anyway. Capitalism and a captive market. If it's flex, why can't you lift it yourself? Between the drop pipe, wiring, and safety rope, "it shouldn't be too hard" g, especially with a hole at the bottom, allowing all that water weight to go away. G'luck. I'm considering installing a pitless adapter so I can sink the manual pump into the well casing alongside my submersible drop pipe. I already have the new lead-free brass foot valve, PVC pump, and PVC pipes. Water level is 18 or so feet. -- Another belief of mine: that everyone else my age is an adult, whereas I am merely in disguise. -- Margaret Atwood |
#33
Posted to rec.crafts.metalworking
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Electrical - what's wrong with this?
On Fri, 3 Jul 2015 11:53:32 -0700 (PDT), "Dave, I can't do that"
wrote: On Friday, July 3, 2015 at 11:22:17 AM UTC-7, Lloyd E. Sponenburgh wrote: You have something else going on down there. Besides... even if 'normal' erosion were the problem, why not seek a solution to the problem, instead of a way to monitor it? The ONLY solution is to replace the pipe. Which you may not be aware is quite light wall pipe, more like tubing and also they have PVC pipes as well. Pun intended. As it happens the PVC lasts longer than the gal-steel and I had them put PVC as the bottom piece this time. I think the well people out here know what they are talking about. I am just the messenger. If they tell me it is not sand and it is water then for me, it is water. There are thousands of wells out here. It's micro-sand in the water, vs. granular. -- Another belief of mine: that everyone else my age is an adult, whereas I am merely in disguise. -- Margaret Atwood |
#34
Posted to rec.crafts.metalworking
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Electrical - what's wrong with this?
On Fri, 03 Jul 2015 13:22:14 -0500, "Lloyd E. Sponenburgh"
lloydspinsidemindspring.com wrote: "Dave, I can't do that" fired this volley in : Not sand it is just normal water abrasion. It's why pebbles in streams are round. NOSIR! Pebbles in streams are round because they abrade against other pebbles and sand. If "normal water erosion" is the culprit, then you either have VERY alkaline or very acid water. My pump, on a plain string of iron pipe, lasted 23 years (and probably more) with no such leaks. Water, all by itself, ain't very abrasive, Dave. Yeah... it can slowly erode things, but very, very slowly, and certainly not through 3/16" to 1/4" of iron pipe in the time you're quoting. You have something else going on down there. Besides... even if 'normal' erosion were the problem, why not seek a solution to the problem, instead of a way to monitor it? Lloyd I certainly agree with Lloyd Gunner, oil field trash for 40 yrs |
#35
Posted to rec.crafts.metalworking
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Electrical - what's wrong with this?
On Fri, 3 Jul 2015 18:00:57 -0400, "Jim Wilkins"
wrote: "Lloyd E. Sponenburgh" lloydspinsidemindspring.com wrote in message .4.170... fired this volley in : Pebbles in streams are round because they roll around against each other in the running water. Water itself is a lubricant, not an abrasive What I said, Clare. But the "Well Guys" (who just MIGHT have a financial interest in the results... nah...) said "No way -- WATER is an abrasive!". So it MUST be true! G L This claims that water becomes more corrosive where it mixes with oxygen: http://inspectapedia.com/water/Well_Casing_Leaks.php Differing oxygen levels are said to be the reason why stainless corrodes in some areas under a boat. The concentration gradient creates a weak battery. -jsw -jsw Which is why Zinc anodes are placed..so the electrolysis eats the zinc and not the steels |
#36
Posted to rec.crafts.metalworking
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Electrical - what's wrong with this?
On Fri, 03 Jul 2015 18:41:42 -0500, "Lloyd E. Sponenburgh"
lloydspinsidemindspring.com wrote: John B. fired this volley in : But as water is made up of oxygen, in part, I suspect that the term should be "free oxygen". As an ersatz chemist, I'd have to say "dissolved oxygen". Lloyd Probably but as water is, what? 1/3rd oxygen. "Dihydrogen monoxide", which is terrible stuff. I read somewhere that everyone that consumes even tiny amounts is either already dead, or will die. -- cheers, John B. |
#37
Posted to rec.crafts.metalworking
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Electrical - what's wrong with this?
On Fri, 3 Jul 2015 21:29:52 -0400, "Jim Wilkins"
wrote: "John B." wrote in message .. . On Fri, 3 Jul 2015 18:00:57 -0400, "Jim Wilkins" wrote: "Lloyd E. Sponenburgh" lloydspinsidemindspring.com wrote in message 68.4.170... fired this volley in : Pebbles in streams are round because they roll around against each other in the running water. Water itself is a lubricant, not an abrasive What I said, Clare. But the "Well Guys" (who just MIGHT have a financial interest in the results... nah...) said "No way -- WATER is an abrasive!". So it MUST be true! G L This claims that water becomes more corrosive where it mixes with oxygen: http://inspectapedia.com/water/Well_Casing_Leaks.php Differing oxygen levels are said to be the reason why stainless corrodes in some areas under a boat. The concentration gradient creates a weak battery. -jsw Nope. Stainless corrodes because of a lack of oxygen in the water, while the article seemed to say that water near the surface contained more oxygen. http://www.boatus.com/boattech/artic...-corrosion.asp (crevice corrosion) or http://www.passagemaker.com/channels...and-corrosion/ But as water is made up of oxygen, in part, I suspect that the term should be "free oxygen". -- cheers, John B. Here is the relevant corrosion mechanism those articles omitted: https://en.wikipedia.org/wiki/Concentration_cell "Concentration cell corrosion occurs when two or more areas of a metal surface are in contact with different concentrations of the same solution." -jsw Yes, Yes. But the common "crevice corrosion" that effects stainless stuff below the water line on a boat is something different. It is a dissolving of the protective coating on the surface of the "stainless". See: https://en.wikipedia.org/wiki/Crevice_corrosion I suspect that finding a body of water that varied in concentration of the same solution within the length of a boat might be difficult. Certainly the ocean is never still :-) -- cheers, John B. |
#38
Posted to rec.crafts.metalworking
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Electrical - what's wrong with this?
John B. fired this volley in
: I read somewhere that everyone that consumes even tiny amounts is either already dead, or will die. Some chemists say that the correct term is not "dihydrogen monoxide", but for specific reasons, Hydrogen Hydroxide. H(OH), in sufficient concentration, will also prevent oxygen from being absorbed by the lungs. Many people have died from H(OH)'s effects on oxygen absorption. It's dangerous, damaging stuff! Hundreds of Billions of Dollars worth of damage to property and infrastructure can be attributed to exposure to it. It's even been known to wear holes through iron well pipes. Lloyd |
#39
Posted to rec.crafts.metalworking
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Electrical - what's wrong with this?
On 07/03/2015 1:53 PM, Dave, I can't do that wrote:
On Friday, July 3, 2015 at 11:22:17 AM UTC-7, Lloyd E. Sponenburgh wrote: You have something else going on down there. Besides... even if 'normal' erosion were the problem, why not seek a solution to the problem, instead of a way to monitor it? The ONLY solution is to replace the pipe. Which you may not be aware is quite light wall pipe, more like tubing and also they have PVC pipes as well. Pun intended. As it happens the PVC lasts longer than thegal-steel and I had them put PVC as the bottom piece this time. .... Why would you not run at least Sch40? The well here also pumps some micro-sand but has never come close to ever wearing thru a wall and has only had one (corrosion) pinhole leak in the time since it was drilled in '64 and that wasn't until mid-80s or so. Typically used here is Sch 80 PVC now with the top joint galvanized for the strength at the upper connection... At the location you're talking, sounds to me like missing a snubber as somebody else mentioned and it's more than likely not the water causing the wear but the flexibility and the pipe is rubbing on the casing when it starts from the starting torque reaction... Either way, there certainly ought to be a solution other than monitoring for leaks and replacing so frequently... -- |
#40
Posted to rec.crafts.metalworking
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Electrical - what's wrong with this?
"Bob La Londe" fired this volley in
: Years ago I helped a buddy pull a deep wind mill pump with steel pipe to replace the leather gasket. We used a lever, some chains to grab the pipe, and and a couple pieces of steel bar bolted together around the pipe to secure it between lifts. We unscrewed each section as we got it above the sleeve. It wasn't hard particularly. Like pulling my pump it was just tedious manual labor requiring a little muscle. I pulled 180' of sch-80 steel with a 5hp submersible on the end of the string -- myself, alone, without a well rig, much as you did. I erected a short derrick of wood and used a chain tackle. As you say... just tedious. It took me several hours, but the only time I broke a sweat was trying to loosen some of the couplings. (gotta get some longer pipe wrenches! G) With the same 8-ton chain tackle, I can't imagine it being any harder to lift a 360' string... just longer. Lloyd |
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