Question about Water Heaters
I found water on the basement floor near the heater
Posted by Anonymous on
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Posted on Jan 02, 2017
sounds like your pressure relief is leaking. Make sure your home water pressure isn't abnormally high (above 80 psi). As long as your water pressure is fine, you should replace the pressure relief.
Posted on Jul 12, 2010
Sounds like the TP valve is releasing water.
To protect your property right now, turn off water heater:
Gas: turn gas valve to pilot so pilot light stays lit but burner will not turn on.
Electric: flip circuit breaker off
Next turn off water valve located on cold water line above water heater.
Last, open tub faucet to relieve pressure on tank.
Once pressure is off after a few moments, close tub valve.
The question is why is the TP valve releasing water.
1) Stuck TP valve: raise lever on TP valve and let back down slowly
2) bad TP valve: replace TP using same temp-pressure rating available from hardware store. Wrap teflon tape around threads and screw new TP valve clockwise until very tight. Make sure water is cool before removing valve from water heater. If you take out valve when water heater is hot, it will spew scalding water all over you. This is serious. Let the water cool down for several hours.
3) Runaway heating caused by bad thermostat
Gas: buy replacement valve at Lowes or plumbing store and replace according to instructions.
Electric: several causes. Test parts to determine which needs replacement.
a) Fixya offers phone support where you speak with a fixya expert on telephone for a fee.
You can use this service if you hit a trouble spot when repairing your tank.
b) You can also call a plumber who will know exactly what to do.
c) You can post questions at a professional plumbing forum:
Posted on Dec 20, 2010
1) Electric heater, do not touch electric heater that is wet or has been wet unless power is 100% off.
2) Gas heater: Same applies to gas heater if controls are electronic, or if electric is grounded to hot water pipe.
3) Manufactures suggest replacing water heater that has been flooded.
Warranty is voided.
Set next heater higher.
4) Electric: You can replace thermostats and elements, but if insulation is wet, the unit could short and be continual electrocution danger >>> and you can't operate electric heater with covers removed because cool air will keep thermostats from reading correct temperature.
5) Gas: You can clean out combustion chamber and replace gas valve and burner assembly, but new heater from local hardware or box store will save time and possibly money.
6) Use old heater as tempering tank if incoming water is cold:
Or use old tank as solar collector:
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Posted on Feb 25, 2011
SOURCE: hot water heater overflow leak
Copy following link for testing and replacing TP valve.
Do not cap off TP overflow tube, as this leakage signals problem.
Posted on Jul 29, 2012
Testimonial: "Still have a slight leak, turned the temp down, and will see what happens tomorrow. Thanks for your help"
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Hot water pressure relief valves serve two functions. The first is to remove high-pressure water from the hot water tank. The second function is to act as a high temperature valve to remove water that exceeds a predetermined point for the valve. Both of these relief settings are preset at the valve factory. Many pressure relief valves will come with a metal tag that identifies these release points. If you're attempting to remove the hot water heater pressure relief valve, pay careful attention to ensure that you replace with the correct valve.
Your hot water heater has a pressure relief valve safety mechanism. When pressure inside the water tank exceeds certain limitations, the valve opens up to allow the pressure to be released. A faulty pressure relief valve will not release excess pressure, which could cause extensive damage to your home. You should test the hot water heater pressure relief valve once every six months to ensure proper operation. If the pressure relief valve fails the test, replace the valve with a new one immediately
Locate the pressure relief valve on your hot water heater. The pressure relief valve has a lever handle on top with a drain pipe attached to it. The pressure relief valve is most often on the side of the water tank toward the top. Newer models of hot water heaters have the pressure relief valve on top of the water tank.
Inspect the area around the pressure relief valve for signs of leaking water. If there is leaking water near the relief valve connection, replace the relief valve. If no leaking is evident, proceed with testing the pressure valve.
Examine the area below the pressure relief valve drain pipe. Most water heater closets either have a drain in the floor below the pipe or the pipe is inserted into another pipe to direct the water out of the home. If the end of your drain pipe is not in another pipe or there is no drain in the floor, place a bucket under the drain pipe to catch water when you test the pressure relief valve.
Pull the lever handle on the top of the pressure relief valve up with your fingers. A working lever will lift up without difficulty.You should begin to hear water going through the drain pipe. Slowly release the lever to shut off the pressure relief valve. The pressure relief valve is good. If you did not hear water running through the drain pipe, lower the lever on the pressure relief valve and replace the valve. If the lever is difficult to raise, do not force the lever. Replace the pressure relief valve.
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