If the Bathtub Faucets still leaks after replacing all the washers then it may be time to replace the leaky faucet.Leaking From The Stem Behind The Wall: This leak is usually the most damaging to a house because it allows water to run inside the house when the leaky faucet is turned on. If when the faucet is turned on it leaks inside the house this means that there is a hole in the wall of the Shower Heads tube.Repair The Leaky Faucet Stem: The only way to fix this leak is to replace the whole faucet.