Hydronic Expansion Tank Replacement

Thus procedure allows you to replace the expansion tank without draining the entire house o.

Hydronic expansion tank replacement.

The expansion tank s purpose is to protect your house s hot water system from excessive pressure which can cause damage to fixtures your water heater lines and or fittings. Pressurized air goes below the diaphragm in the bottom half of the tank and water flows. Inside the tank has a rubber diaphragm at around the mid point of the tank. This is a great diy how to change a potable water expansion tank.

Expansion tanks are installed down the line from the inlet valve that supplies the water heater in your home. With the right tools and this guide you will be able to replace the expansion tank on your water heater without calling a professional plumber. An expansion tank is used to prevent issues related to excess pressure from your home s hot water supply. Without it you would be at risk for damage to your water lines fittings and water heater.

Just follow the steps below to safely replace your water heater expansion tank.