And in some other cases you can remove it carefully with a non-methylene chloride paint remover. However, the better part of valor is to contact a lead abatement company to determine if and where you have lead paint. Then hire a contractor who will remove or encapsulate it. This is expensive but worth it. Handyman on Call, Peter Hotton, will answer readers' questions.
Water hammer is the kinetic energy of water stopping or starting in the pipes.
It can be a loud bang and can break soldered joints. It usually occurs when a valve is turned off or on, mostly off, suddenly. If you can adjust the valves in the toilets to shut off more gradually, you might solve the problem. If that can't be done, you can install a water hammer arrester on the line leading to the toilet. This arrester is a small ball-shaped bladder device that is fitted on the line and acts as an air cushion to slow down the water and silence the bang.