|Posted by murphyplumbing.com on June 16, 19100 at 00:50:18:|
|In response to Re: Hot water heater "knocks" with running water|
: I just moved into a new home, and the hot water heater periodically "knocks" while the water is running. It is very loud and I can hear it in other rooms. This is an older gas heater from Sears (40 gal I think) and that's all I know. Is it about to die on me or is it something like air in the tank? Thanks!