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Old 11-08-2018, 08:54 AM   #1
cayovelez
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Water heater issues

Hello all,

I have this issue with my water heater that is driving me crazy. The water heater keeps on leaking via pressure relief valve during refilling all the time. I have change relief valve, re-established air pocket several times a week and still leaking. I am on a travel assignment living on a site with full hooks ups so the city water is always connected and the water heater is on electric mode all the time. I do know that a little drip is normal due to closed system, but the amount of water seems excessive, the gutter on the heater is constantly full and during cycles it drips all over.

what to do?

Thanks,

Carlos
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Old 11-08-2018, 01:26 PM   #2
chuckster57
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At this point I would just replace it. You can get one from the local big box hardware store, just be sure to check the thread size since there are two different ones.
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Old 11-08-2018, 02:18 PM   #3
cayovelez
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I have replaced it twice.
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Old 11-08-2018, 03:38 PM   #4
sourdough
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Probably has nothing to do with it but, what is your water pressure and are you sealing the threads? If it is leaking out the outlet it is either pressure or the valve in my mind.
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Old 11-08-2018, 03:46 PM   #5
cayovelez
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Pressure is around 50 psi. Thinking of eliminating the backflow valve, but not sure.
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Old 11-08-2018, 04:01 PM   #6
wiredgeorge
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Might want t9 put a regulator on your city water inlet and get it down a tad and see if that helps if you have replaced the relief valve. A relief valve is a common piece of RV junk that can be had in places like a Walmart.
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Old 11-08-2018, 05:04 PM   #7
nied
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From the Atwood manual:
PRESSURE-TEMPERATURE RELIEF VALVE Weeping or dripping of a pressure-temperature relief valve while the water heater is running DOES NOT mean it is defective. This is normal expansion of water as it is heated in the closed water system of a recreation vehicle. The Atwood water heater tank is designed with an internal air gap at the top of the tank to reduce the possibility of weeping and dripping. In time, the expanding water will absorb this air. To replace the air follow these steps: Step 1: Turn off water heater Step 2: Turn off incoming water supply Step 3: Open the closest hot water faucet in the coach Step 4: Pull handle of pressure-temperature relief valve straight out and allow water to flow until it stops. Step 5: Allow pressure-temperature relief valve to snap shut, turn on water supply and close faucet.
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Old 11-09-2018, 06:36 AM   #8
fatcatzzz
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I would check the water temp. On a Suburban water heater I believe that the thermostat is preset to 120 degrees. If the temp is getting higher than that expansion could be causing the pressure to open the relief valve. If the temp are getting higher than 120 degs. replacing the thermostat should take care of the leaking.

Just my 2cents
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Old 11-09-2018, 07:24 PM   #9
bobbecky
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I just let ours weep, doesn't hurt anything. If you really want to stop the leak, you could install an expansion tank, which will absorb the expansion of water when it heats up, and hopefully this will stop the weeping. This is one that might solve the problem- https://www.amazon.com/SHURFLO-182-2.../dp/B000N9VF6Q
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Old 11-12-2018, 09:01 AM   #10
cayovelez
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So I have replaced the relieve valve twice, installed a water pressure regulator, re-established air pocket 4 times this week and changed the Thermostat and still weeping a reasonable amount of water. I don't think an expansion tank would help since I am constantly connected to city water, so at least I believe since my understanding of expansion tank is to help the pump.
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