After not flowing water overnight I get a water hammer when the pump kicks in. A new pump and hardware was installed in 2018. There is a check valve in the pump, another on top of the pump and a third CV just prior to the pressure tank.
I've researched here and it seems the CV at the tank is not recommended. Could this be causing the water hammer?
I've researched here and it seems the CV at the tank is not recommended. Could this be causing the water hammer?