DIYbanter - View Single Post

wrote:
SNIP
The bad news is that the addition of the water hammer arrestor didn't stop
the banging in the water heater when turning off the hot water. I'll try
again tonight with a simple air chamber, in case the piston in the
arrestor got stuck or something.

1) Is this a single bang (rather than a rumble) when *any* Hot faucet
is closed?
2) City water? High pressure?
3) Gas water heater? Bang only when heater is firing, or anytime?

Any other clues...

Jim