Homeowner had upstairs hall bath tub and shower was passing water continuously. Found pressure is at 90 psi. Educated homeowner on high-pressure issue. homeowner wanted to go with the cartridge replacement at this time. replaced cartridge, the constant drip has subsided for now. explained to the homeowner, if any other faucets or toilets are having issues. The main problem is the pressure,and the Prv will need to be replaced