Hello,
I have 110lbs of pressure coming in my home and I believe its causing my hot water heaters relief valves to lift (I have 2 40 gallon tanks). I called the city and they said I could add a regulator inside the house or they could adjust the pressure outside at the main. I said I would just as soon install one in the house so my lawn sprinkler system isn't affected. My question is should I install an expansion tank on the hot water heater as well or is that necessary? I currently have no regulator inside or expansion tank. The house is about 15 years old, the hot water heaters are 4 years old. The incoming pressure used to be around 85, but I just measured 110 the other day. If I install an expansion tank, I read the tank needs to be set at the same pressure as the incoming main. So, what pressure is the regulator/expansion tank typically set at?
I have 110lbs of pressure coming in my home and I believe its causing my hot water heaters relief valves to lift (I have 2 40 gallon tanks). I called the city and they said I could add a regulator inside the house or they could adjust the pressure outside at the main. I said I would just as soon install one in the house so my lawn sprinkler system isn't affected. My question is should I install an expansion tank on the hot water heater as well or is that necessary? I currently have no regulator inside or expansion tank. The house is about 15 years old, the hot water heaters are 4 years old. The incoming pressure used to be around 85, but I just measured 110 the other day. If I install an expansion tank, I read the tank needs to be set at the same pressure as the incoming main. So, what pressure is the regulator/expansion tank typically set at?