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Old 08-27-2008, 02:55 PM   #1
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PRV dribbles


anyone know why the valve would dribble a pie plate size of water on top of heater every so often, sometimes a couple of days go by and then bam theres water on the top of the tank.

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Old 08-27-2008, 09:32 PM   #2
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PRV dribbles


Are you talking about a T&P blowoff valve? Maybe something I've never seen, but they're usually on the side of the water heater. They will leak if you test them, and they're a breeze to replace. They cost about $6. Turn the tank off, shut off the water, drain it a little, unscrew the old one, dope up a new one and screw it in. Good to go.

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Old 08-27-2008, 10:17 PM   #3
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PRV dribbles


PRV's have a spring inside them. They can sometimes become weak and allow a small amount of water to seep out. Thekctermite gave you the instructions for replacing. Easy job.
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Old 08-28-2008, 04:12 AM   #4
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PRV dribbles


the pressure relief valve on top of the tank is what i am talking about. It is a brand new water heater. It is either that or the nipple on the hot or cold side leaking where they screw in to the tank. It doesnt leak all the time, I would have to watch it for hours to see it leak. Its freaky, It has gone 2-3 days without leaking and then all of a sudden there is a puddle of water on the top of the tank.
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Old 08-28-2008, 11:24 AM   #5
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PRV dribbles


If it is the PRV, you should be able to stick your finger into the opening and feel water in the threads. I have had some new ones fail. You could screw a short nipple into the PRV to make sure if that is where the water is coming from. It would give you more area to test for water.
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Old 08-28-2008, 03:07 PM   #6
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PRV dribbles


yes, I am going to install a nipple and pipe it to the floor. If I get water on the floor I will know it is coming from the PRV. If not it has to be one of the nipples going in to the tank. Will keep you posted. thanks

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