When I turn on my shower, the pressure is fine when only cold water is coming out. As I rotate the faucet to warm and hot, the pressure decreases to a dribble. What do I have to do to repair this?
Do you have the same problem in the rest of the house? If not, the problem is at the shower control. If so, the problem is with the hot water, probably at the heater.
Folks, I think I have found the solution. Inside the faucet apparatus there is a valve that controls water pressure. I'm told, by a helpful employee of Home Depot, that these valves eventually wear out ot stick. They cost about $28 to replace. The HD guy suggests just breaking off the faucet [it's stuck and nothing I do has loosened it yet - HD guy says it's corrosion], but I bought a faucet puller [$8.95] to try to save myself the $90 the faucet unit costs, in addition to the $28 valve.