How to fix Pressure Relief Valve

Broken Pressure Relief valve can flood your basement, increase you energy spending, and in the works case, it can explode, and pose serious health risks!
To test the valve, you will need a small container – about 1/2 gallon. Once you have your gloves and goggles on, unscrew/remove drain tube off the valve.
Place water container directly under valve outlet (which should be facing down).
Now open the valve slightly (about 60 degrees from its original position). Be sure not to open it all the way, or HOT water will start pouring down.
When you open the valve, the water should start coming out rapidly, under pressure, and you will hear hissing noise. This means your valve is working properly.
If water is not coming out – valve is broken.

HOW to Fix / Replace Broken Pressure Relief Valve:

First – be VERY CAREFUL – water in the tanks is VERY HOT. Wear gloves and safety goggles, and use utmost caution. If you do not feel comfortable doing this yourself, contact Solar Water Heater Maintenance Dubai.
STEP 1 What you need to do, is shut off the cold water intake and gas (dialer on the water heater control) or circuit breaker for the heater (if electric).
Then connect a water hose to bottom outlet. Put hose in 5 gallon bucket or run outside your basement. Again please note that water in the tank is very hot!
Drain about 5-10 gallons (depending on how high up the pressure valve is).
STEP 2 Once you drain the water, remove the discharge tube / pipe off the relief valve.
Gently open pressure valve half way (not all the way) to see if water still coming out of it. Put a small bucket or container right under the valve.
If water is coming out, drain another 5 gallons, and repeat.
Once water stops coming out, use plumbers pipe wrench to unscrew the valve.
STEP 3 Now go to the local home improvement store and buy a new valve with the same pressure setting, and a roll of teflon tape.
When you buy your parts, put teflon tape on new valve threads clockwise, and screw in new valve tightly.
You can also get one online.
STEP 4 Now open cold water and put gas setting back to normal (or turn on circuit breaker if electric).
Once tank is full, again gently open pressure relief valve and let a little water out (2-3 ounces). Remember, water will be hot, so be careful.
Once you drain 2-3 OZ, and close valve back, see if water is still coming out. It should not!
If all is good, put discharge tube/pipe back on. You are done!
You should test the pressure valve avery 6-9 months! Just repeat the open / drain 2-3 oz procedure, to make sure the valve is good.
 For service and repair please contact solar water heater dubai.

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