Two things: 1 - Temperature Pressure Relief valves (TPR Valves) do corrode and do leak priodically and replacement is a trip to the plumbing supply house and a 15 minute job to replace the relief valve. 2 - The normal ratings for PRV's are 190-200 degress temperature and 150 psi pressure. If the service line pressure is over 120 psi or so, any slight variation in pressure such as the hydraulic pressure in turning off a faucet will open the valve and it will continue to drip. If the line pressure is high you should install a pressure regulator valve in the service line and reduce the overall house presssure to 40-60 psi. The rest of the valves in the house will appreciate the lowered pressure. By all means, replace the valve. I have personally had stuck or corroded TPR valves along with a stuck thermostat that backed up hot water in the cold water line three doors down the street. I have also seen movies of houses blown to bits by an exploding water heater....
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Today's Featured Article - Talk of the Town: The Saga of Grandpa's Tractor - by The following saga is from the Tractor Talk Discussion Forum. Someone. The saga starts with the following message: Hey guys I have a decision to make. I know what you all will probably suggest and it will probably agree with me way down inside, but here it is. I have a picture blown up and framed in my "tractor room" of a Farmall M. It was my Grandpa's tractor, of which whom I never got to meet. He froze to death getting this tractor out of the barn to pull a truck out of the ditch before I was born. Anyway my dad and aunt had to sell it at the auction,
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