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Old 08-17-2008, 07:34 PM   #16
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water heater leaking


also there is a nut under the screw on the prv, how does that have to be adjusted with the screw?

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Old 08-17-2008, 08:06 PM   #17
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Dave you need to put about 90 pounds in the expansion tank. The nut on the PRV is to lock the setting of the screw, set the pressure with the adjusting screw, hold the screw so it will not turn, tighten the nut against the valve body with a wrench. This locks the screw so the pressure setting will not change.
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Old 08-17-2008, 08:24 PM   #18
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o.k, I shut the water at the street, pumped expansion tank to 100 psi, locked down the nut so pressure will stay its at 85 I am purging air out of system ie: opening all faucets. Anything else besides crossing fingers? and thanks in advance for all your HELP. and for hanging in there with me.
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Old 08-17-2008, 08:27 PM   #19
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Hope that takes care of your troubles
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Old 08-17-2008, 08:30 PM   #20
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so far so good, one last thing, I put a tire pressure gauge on the expansion tank and I get 50 psi, I put the electric pump on the tank and pump it to 100psi. I hope the electric pump gauge is the true reading.
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Old 08-17-2008, 08:30 PM   #21
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also, for a electrical contractor, your one hell of a plumber!!!!
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Old 08-17-2008, 09:54 PM   #22
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Your reducing valve is not working if you can't get it to drop the pressure to 50 or below, there set to 50 out of the factory. You might even think about it's replacement.

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