I need help... The water pressure at my daughter's townhouse measures 80 psi when nothing is open. If a sink is turned on, the pressure drops to 70 psi. If a faucet is turned on and a toilet is flushed, the pressure drops to 25 psi. She has city water (not on a well). There is a whole house filter and a water softener just after the water meter in the basement. There is no Pressure Regulator /relief value connected to the main line. The pressure issue seemed to start after I reconnected an old water softener, but not sure why the pressure would drop so badly because of this. The softener has a built in bypass and I turned it so it bypassed the softener tank but still had drop in pressure (didn't measure it with pressure gauge yet, but can see a drop in water flow). Any ideas why the pressure drops so badly?
Scott
Scott