Clang, Clang goes the bathtub, Ding Ding goes the hot water heater
Posted by Jim Bond on July 29, 2003 at 16:01:32:
Two issues -- when I turn on the water to the master bath tub -- after it hasn't been run in a while -- a big CLANG, as if pipe/pipes are suddenly jolted.
Also -- For about five minutes after shower, hot water heater makes a "ticking" or "dinging" sound.

What could be the causes, and what might be done?

Many thanks.