Should Water Heaters Be Flushed Annually

[Al Williamson]

Do annual flushing really extend a water heater's useful life?

[Derreck Wells]

While we're on the subject, the vacuum breaker on the water tank should also be inspected. When this fails, it allows hot water to flow backwards out of the tank back into the supply line when there's cold water running through the T that feeds the tank. It's causing the tank to run when it shouldn't be. A money saver if you're paying the utilities.