Dwafford13
New Member
New construction, I installed two shower faucets with pressure balance valves. When the valve is turned on on one of them, nothing happens, no flow at all. On the other one, after it has been shut off for a while, it will flow some at first, but the flow quickly ramps down to a trickle and then stops. I have confirmed good pressure and flow at both valves by removing the pressure & balance cartridge and turning the water on. Both produce a powerful stream of water with the cartridge absent, but no flow when the cartridge is installed. I can't see any adjustment provision on the P&B cartridge.