The water pressure in our bath/shower is very poor regardless of hot or cold. I took a stab and replaced the tub/shower valve which made no difference. All other fixtures in the house have surprisingly high water pressure. When the water is coming out of the bath fixture, the shower head sounds like its slurping. When the water is coming out of the shower head, you can hear the water flow in the wall more than normal. Help please!!

The home is 23 years old if that helps

This happened to me. I had to hire a plumber. He identified the pipe that leads in and HYDO flushed it... it worked and we had beaitful pressure. $500 bucks. Wife happy.

Something may have fallen inside the pipes and/or gotten in from a previous leak repair or a large gob of solder or rust may have worked loose or a valve may be not fully open. So many things it could be. You going to have to isolate and eliminate to find it.