Love cats
New Member
New water regulator and now pressure fluctuates 5 to 10 lbs. as one to two faucets are turned on. Unrelated to water heater and expansion tank as plumber disconnected hot water line at water heater and attached it to cold inlet on water heater and it still happened. Also still happened with water heater off. My past water heater did not fluctuate this much. This happens with regulator at 55 psi or 65 psi. Expansion tank pressure matches close to regulator pressure. This is my second regulator installed as first one totally failed. Slab leak occured after second regulator installed. Slab leak is repaired but fluctuations still occurs. Do I have another bad regulator? Please respond! Thanks