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#1 |
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New Guy
Trade: PLUMBING/ MECHANICAL LIC SC
Join Date: Jan 2009
Location: spartanburg
Posts: 21
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Hot Water Problem
I HAVE A 3 STORY BUILDING THAT HAS A HEATER ON THE 2nd floor. IT HAS A RECIRCULATING PUMP AND MIXER VALVE ON IT WHICH SUPPLYS THE BATHROOMS WITH 120 DEGREE WATER AND THE KITCHEN WITH 140. MY PROBLEM IS THAT ON THE 1ST FLOOR THE BATH ROOM IN THE KITCHEN HAS NO HW AT TIMES. IF YOU TURN IT ON IT IS COLD. IF YOU LEAVE IT ON AND TURN ON THE COLD WATER AT ANOTHER SINK IT WILL GET HOT FOR A LITTLE WHILE THEN GO COLD AGAIN. THIS IS THE ONLY SINK THAT DOES THIS. WE HAVE BATHROOMS ON ALL FLOORS. THE ONLY THING I KNOW WAS THAT SOMEONE MY HAVE TIED A COLD WATER LINE IN TO THE HOT SOMEWHERE. ANY SUGGESTION?
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#2 |
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New Guy
Trade: residential/commercial plumbing contractor
Join Date: Jan 2009
Location: central ky
Posts: 25
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Re: Hot Water Problem
Well, how is your circulating line plumbed? Without knowing I will add that a fixture close to the water heater will suck cold water if the return line is plumbed into the bottom of wh(remember the dip tube extends to bottom of tank). Make sure you have check valve installed in hot water return line. Doubt there is a cold line hooked to hot, but if you want to check turn hot water off and see if there is still pressure on hot side.
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#3 |
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Pro Plumber
Trade: Plumber
Join Date: Oct 2006
Posts: 2,779
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Re: Hot Water Problem
What type of valves? I know Moen is known to cause this to happen, start replacing cartridges if there in Moen faucets and valves in there.
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#4 |
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New Guy
Trade: PLUMBING/ MECHANICAL LIC SC
Join Date: Jan 2009
Location: spartanburg
Posts: 21
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Re: Hot Water Problem
Sorry did not explian that the water is heated by a boiler and then goes to a storage tank. The circulating line is feed to the storage tank which has no dip tube. There are check valves on the circulating line. I will try turning the hw off and see what happens. Ron the valves are t&p. I even tryed turning the cold stop off and still nothing.
Thanks for the advice. Any other ideas. Last edited by PLUMBINGITALL; 01-23-2009 at 10:31 PM. |
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#5 |
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Pro Plumber
Trade: Plumber
Join Date: Oct 2006
Posts: 2,779
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Re: Hot Water Problem
Log on and register over on plumbingzone.com there will many more plumbers on there that could possible help you solve this issue.
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#6 | |
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Moderator
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Re: Hot Water ProblemQuote:
You can tell if you have a cross connection by shutting down the feed to the storage tank and checking for hot water on the third floor. If water flows, then you have a cross connection, if not, then you do not have a cross connection.
__________________
"My clients’ wishes are the center of my attention." -- David Guido, a contractor in Woodstock, N.Y. New York Times, July 20, 2006 |
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#7 |
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Pro
Trade: Plumbing & Electrical
Join Date: Jun 2006
Location: SoCal
Posts: 1,195
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Re: Hot Water Problem
Sounds like Ron has it...Bad Cartridge...see this all the time.
__________________
"....And then we all switch places when I ring the bell" -Adrock
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#8 |
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New Guy
Trade: PLUMBING/ MECHANICAL LIC SC
Join Date: Jan 2009
Location: spartanburg
Posts: 21
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Re: Hot Water Problem
The lav with the hot water running will get hot when you turn on the cold at another sink like in the ladies rr. There are no cartridge. There are no shower valves in this building. The valves in the bathroom or t&s two handle.
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