How To Repair A Leaky Shower Or Tub Valve Faucet - Dual Stem Type

Tutorial of repairing a leak in a price pfister stem valve faucet in my shower. I needed to replace the valve stem seat and the rubber flat washer. disassembly and assembly was simple, and I bought the replacement parts at lowe's. The leaking is fixed! Hooray! No more drip drip drip.