Our tub has a Delta valve for shower head and tub faucet. It's 13 years old. Suddenly one morning we noticed the pressure dropped by about half and when we shut off water after shower almost no water leaves the faucet. We cleaned the shower head but no difference. Replaced shower head no difference. Called plumber he replaced cartridge but no difference. Removed flow restrictor and filter from the shower head. That helped some. The faucet seems to flow normally when filling the tub. So now we have about 70% flow which we can live with but interested in learning what might be wrong. Our plumber suggested replacing the valve but that's a big job.
My guess is that somehow the valve feeding the pipe up to the shower head has become partly plugged. Reduced flow goes up to the shower head but acts like a check valve when water is turned off.
Very interested in what a plumber might know and if there is an easier fix.
Thanks
My guess is that somehow the valve feeding the pipe up to the shower head has become partly plugged. Reduced flow goes up to the shower head but acts like a check valve when water is turned off.
Very interested in what a plumber might know and if there is an easier fix.
Thanks
