Hi All. I have read as many online threads as I can to determine the proper ET pressure on my cold water line. Below is what has been replaced:
New 40 gallon water heater
New 2 gallon ET
New Watts PRV set at 50psi
During the day, water pressure stays mostly consistent at 50psi, this was measured with my Watts gauge and with my plumbers gauge when he replaced the PRV. Overnight, the pressure peaks at 75PSI. Prior to getting my PRV replaced, the pressure at the house was around 75psi which is where I set the ET but I knew the PRV was going to get replaced so I wasn't concerned about being correct for the time being. Also with the ET at 75psi and that is where my pressure peaks, I guess the ET is doing its job. Now with the pressure being lower, I want to adjust it correctly. From what I can conclude, my water pressure mostly stays at 50psi during the day but I've seen it at 55psi. So should I set my ET to 55psi or 60psi?
Also, what is the considered a normal expansion of water over night? I assume if my ET was not installed or set at 75psi, the pressure would be higher? The water heater is set to 120F.
Thank you in advance. Hopefully this is not a repeating thread.
New 40 gallon water heater
New 2 gallon ET
New Watts PRV set at 50psi
During the day, water pressure stays mostly consistent at 50psi, this was measured with my Watts gauge and with my plumbers gauge when he replaced the PRV. Overnight, the pressure peaks at 75PSI. Prior to getting my PRV replaced, the pressure at the house was around 75psi which is where I set the ET but I knew the PRV was going to get replaced so I wasn't concerned about being correct for the time being. Also with the ET at 75psi and that is where my pressure peaks, I guess the ET is doing its job. Now with the pressure being lower, I want to adjust it correctly. From what I can conclude, my water pressure mostly stays at 50psi during the day but I've seen it at 55psi. So should I set my ET to 55psi or 60psi?
Also, what is the considered a normal expansion of water over night? I assume if my ET was not installed or set at 75psi, the pressure would be higher? The water heater is set to 120F.
Thank you in advance. Hopefully this is not a repeating thread.