I have a shower faucet where you have to pull up a plunger to get the water up to the shower head. When I first turn on the hot water, the pipes bang like they will break. After I pull the plunger for the shower head, it stops. This is the only fancet in the house that does this. Even if I turn on the cold with the hot. Maybe, it doesn't happen if I turn the H and C on full blast.