IF all else fails, drain your water pipes completely. Sometimes the little
stubs a plumber uses to arrest water hammer gets water logged (the air in
the stub dissolves in the water and disappears). THe quick fix is to drain
the the system and refill so that the air in the stub is restored. The
newer valves close faster than the older ones and cause more water hammer.
Newer addon water hammer arrestors have a bladder in them to keep the air
from mixing with the water.


"Michael Muderick" wrote in message
news1Doi.1383$b04.1196@trndny06...
I replaced my flush valve and flapper with an LDR brand. Works great.
There actually seems to be a greater flow into the bowl- not sure why.
Anyway, the problem is a few seconds of water hammer after the toilet
finishes filling and the valve shuts off. Is it because the valve shuts
off too quickly-- is there an adjustment for that or is that the nature of
a valve that doesn't use a ball, but rather an integral float? Would
closing down the feed shutoff valve to lessen the pressure flow to the
toilet help? It would lessen the pressure difference in the line between
running and not running. It doesn't happen when the sink or bathtub are
shutoff quickly. ????
Thanks,