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Old 09-25-2011, 04:15 PM   #1
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Plumbing leak

I noticed a little bit of water a few weeks ago under the TV cabinet. It was in the morning and I had turned on the hot water heater for about 20 minutes and then turned it off. At first I thought it was condensation from the furnace since it sits in the same area...hahaha...I wiped it up and didn't think anything about it until I turned the HWH on again that evening and the same result. Further investigation showed a bit of water leaking from the connection at a cold water fitting and the flexible hose that runs to the toilet. Now I can not see this fitting as it is buried under drain pipe and cable but I could feel the water there. The water was cold not hot? The HWH is on the other side of the MH...so why would turning on the HWH cause a leak from this connection...? I followed the guidelines to redo the air cusion for an Atwood HWH and that seem to stop the leak...I can not replicate it now...I am stumped. Any thoughts on this one?

Jim
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Old 09-25-2011, 09:20 PM   #2
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I first thought of the pressure relief valve venting a bit of water when the water gets hot but I would assume that valve would be located outside the coach. Can you see the water heater valve from the outside? I wonder if it could possible leak from there and run under you TV.
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Old 09-26-2011, 02:55 AM   #3
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Quote:
Originally Posted by MutinyGuy View Post
I noticed a little bit of water a few weeks ago under the TV cabinet. It was in the morning and I had turned on the hot water heater for about 20 minutes and then turned it off. At first I thought it was condensation from the furnace since it sits in the same area...hahaha...I wiped it up and didn't think anything about it until I turned the HWH on again that evening and the same result. Further investigation showed a bit of water leaking from the connection at a cold water fitting and the flexible hose that runs to the toilet. Now I can not see this fitting as it is buried under drain pipe and cable but I could feel the water there. The water was cold not hot? The HWH is on the other side of the MH...so why would turning on the HWH cause a leak from this connection...? I followed the guidelines to redo the air cusion for an Atwood HWH and that seem to stop the leak...I can not replicate it now...I am stumped. Any thoughts on this one?

Jim
water expands when it is heated in your water heater tank. this will force a leak in loose or marginal connections in the hot and cold water systems.
reestablishing the air gap in the top of the water heater will help by reducing the pressure as air is compressible while water is not.
my sink faucets will drip a little when the pressure gets too high.
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Old 09-26-2011, 08:26 AM   #4
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The water in the lines is not hot untill you run the water. It heats and expands in the tank and puts presure on the line so the water you feel will be cold because the water in the hot water line ir still cold.
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