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sweaty 08-30-2008 08:40 PM

Replacing Drain Valve on WH
I need to replace the drain valve on the water heater (it leaks). Do I need to drain out all the water in the tank first?

Nestor_Kelebay 08-30-2008 10:18 PM

You can do that, but an alternative "fix" would be to just go to any garden supply store and buy a "cap" for a garden hose, and just install that on the leaking drain valve.

If there isn't one already in it, put a hose washer into the cap for a tight seal.

It's called "thinking outside the box".

biggles 08-31-2008 08:16 AM

if you never drained your tank before do it with the exsisting drain and you might flush it out.then refill and see if it stops when the tank reheats the drain your tank shut off(on top) the cold water into it.... set the gas valve to the pilot position ....hose out the drain to the yard for 5 miutes and then with a bucket under the relief ....vent it there(set the silver pin up)you will hear the air sucking in and the balance of the tank water will drain down.if it is only a drip on that drain valve the cap suggestion is a safe easier way to go.when you go to refill shut the relief back (pin down) then open the cold water and flush the base of the tank out for 15 minutes leaving the drain open.shut the drain and let the tank refill reset the gas vale to ON and the flame burner should come right back on...:thumbsup:

bob22 08-31-2008 02:30 PM

If it is an electric water heater, shut off the breaker to it before you drain it and make sure it is full before you turn the breaker on; otherwise you'll burn up the elements in the tank if there is no water in there to keep them "cool".

Marlin 09-01-2008 08:20 AM

You are talking about the drain valve and not the T&P right? If it is the drain valve stick a cap on it and call it a day.

Nestor_Kelebay 09-01-2008 10:00 PM

Oy, but dat would be a short day!

sweaty 09-03-2008 08:54 AM

I decided to just put on a hose cap. It worked.

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