Posted by Mike H. on October 28, 1999 at 18:36:00:

When our water heater is heating water after water use, there is a knocking sound. Is this a problem and if so, how can I fix it? DO I need to replace the heater?

Replies:

• Re: Knocking sound - Water Heater - HELP! Don 15:57:08 10/29/99 (0)