Hi, I have a shower faucet that is constantly leaking. It is a Price Pfister three control system, (hot, cold, and shower diverter). The cold water handle leaks when it's on and the shower is off. The shower diverter leaks when it is turned on. And the actual faucet leaks when everything is turned off. This is my only shower in the home, so I'm trying to get a list of things I need to fix this so I can try and do 1 trip to the plumbing store. Any help is much appreciated! :)