On Sun, 08 Apr 2012 05:43:44 -0700, wrote:
Bubbling noises from the water heaters?
That doesn't sound right.....

It is clearly from the heaters.
Are they not supposed to bubble?

If the demand isn't that high, I'd shut one off.

I should try that. I think the only one who would 'miss' the 100 gallons
of hot water is the teen miss herself!

If so, he's save on the standby losses.

Would the tank 'go bad' just sitting there though?