When a water heater is connected to a closed system, an expansion tank must be installed to prevent excessive pressure in the water. To help understand what this is all about, please read on. Why most ...

As I mentioned in last week's blog post, expansion tanks are required when water in a home can't expand back into the water main. This might be caused by a check valve, a backflow preventer, or a ...

If you've had your water heater replaced in the past 10 years you've probably noticed in addition to purchasing a new water heater your plumber informed you an expansion tank or valve was needed.