Mikeyboy
New Member
It all started when my T&P valve started leaking so I replaced our expansion tank with a Wellsaver expansion tank from Lowes left it pre-charged at 25psi. Result - still leaking but less
Then, I replaced the T&P with a new one. Result - still leaking but a lot less
Then, I realized that my old expansion tank was a Watts that was pre-charged at 40 psi. So, I turned off the water and power from my 50 gal electric wh, released all pressure from from the T&P valve, added air to the expansion tank to 40psi. Result - still leaking but a lot less.
Then, I bought a water pressure guage and connected it to the cold laundry side and here are the results:
1) When I turned on the water, the gauge jumped to about 140 psi. When I open the faucet, the pressure drops but when I close the faucet the pressure slowly creeps up to 140psii.
2) When all the pressure was released, I added more air to the expansion tank to approx 55psi where initially it had about 40psi. When I turned on the water again, the gauge went back to approx 140 psi.
So, what is wrong? Is my expansion tank not working? Is it too small? I called the town and they did not increase any water pressure. Please keep in mind, this was all working fine with no drips a few months ago. The only thing we did within that time is winterize and blow our irrigation system but we do that at the end of every summer.
I also I have a pressure reducing valve after the water meter that looks old. Should I try loosening the check nut on the prv counter-clockwise to hopefully lower pressure?
Then, I replaced the T&P with a new one. Result - still leaking but a lot less
Then, I realized that my old expansion tank was a Watts that was pre-charged at 40 psi. So, I turned off the water and power from my 50 gal electric wh, released all pressure from from the T&P valve, added air to the expansion tank to 40psi. Result - still leaking but a lot less.
Then, I bought a water pressure guage and connected it to the cold laundry side and here are the results:
1) When I turned on the water, the gauge jumped to about 140 psi. When I open the faucet, the pressure drops but when I close the faucet the pressure slowly creeps up to 140psii.
2) When all the pressure was released, I added more air to the expansion tank to approx 55psi where initially it had about 40psi. When I turned on the water again, the gauge went back to approx 140 psi.
So, what is wrong? Is my expansion tank not working? Is it too small? I called the town and they did not increase any water pressure. Please keep in mind, this was all working fine with no drips a few months ago. The only thing we did within that time is winterize and blow our irrigation system but we do that at the end of every summer.
I also I have a pressure reducing valve after the water meter that looks old. Should I try loosening the check nut on the prv counter-clockwise to hopefully lower pressure?