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 ...

Why does the water heater in my new house have another small tank hanging off the side of the pipe above it? That is an expansion tank installed on the water supply pipe to the water heater. Its ...

The new ETX and ETSX Series expansion tanks are designed for use with hydronic heating and cooling systems. These pressurized expansion tanks are designed to absorb the increased volume of water ...

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 ...

Question: My question is about radiator overflow tanks. I’ve always had cars and trucks that had an overflow tank that you would keep full to the cold or hot mark. Checking over my daughter’s car, she ...

If the required cold fill pressure is higher than 12 psig, there is an important step that must be taken if a pre-charged expansion tank is being used. The air charge in the tank must be adjusted to ...