: Re: my water heater that "knocks" and "pings" after it kicks on say, after a shower. If it is sediment built up, is that unusual for a water heater that's 2-3 years old? And what's involved in having it flushed? And can harm be done in the meantime, if the sediment, and knocking, remain? Thanks again.
If you kept the book the installer gave you , you will see where a hose connectios that allows you to "blow down" the heater to remove possible sediment deposits YOU DO NOT have to drain the entire tank down just run it until the water is clear