Most likely the valve is worn out or debris has gotten into the seat to keep it from closing. First, try flushing the valve thoroughly by pulling the handle all the way up several times, if it still drips, replace it, but be absolutely sure that the new valve matches the old valves rating exactly[on the handle tag]. Most importantly, be sure that the water is not overheating and the valve is just doing it's job, but I think you would have noticed that. Also be certain that the pipe leading from the pressure valve is the same size as the thread on the valve.
2007-02-19 03:51:54
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answer #1
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answered by Anonymous
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This valve has a dual purpose, it vents due to excess pressure or excess temperature.
First check the hot water at the tap. Then compare that reading to the little tag that should be on this valve. You shouldn't really have the tap water over 140 F anyway.
Has the city changed your meter or done any work recently at the street? If so, they may have added a check valve that prevents water from your home is back flowing into the city mains. When your water heats it expands. Normally the expansion can be accomodated, but if not it will want to flow back up the mains. A check valve prevents this, and consequently your safety valve will dribble this excess pressure.
To solve this issue, you need only add a small expansion tank to the cold water side of your system.
It could also be a faulty safety valve.
2007-02-19 01:55:56
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answer #2
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answered by KirksWorld 5
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Turn off the hot water heater. Drain about a third of the water by way of the bottom drain (run a garden hose to nearest drain) Un screw T and P valve from side of tank. Install new one. Fill tank. Turn it on. Chances are some sediment, or solder entered the water from the copper work and buggered the T and P. For what they are worth, replace it.
2016-05-24 08:21:45
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answer #3
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answered by Anonymous
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Sounds like your water sucks.1999.Dam that's too soon.
You need to have the water heater serviced.The water heater needs flushed and the T and P valve needs replaced.
2007-02-19 03:03:21
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answer #4
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answered by Anonymous
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The valve is bad. Probably from calcium deposit or hardness in the water you can replace it. Any home repair store will have 1.
2007-02-19 01:46:37
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answer #5
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answered by tommy 4
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Could be a bad seal in the valve. I'd replace that 1st to see. They are not expensive and easy to change.
2007-02-19 01:47:29
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answer #6
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answered by daffyduct2006 6
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