Understanding The Basics Of Expansion Tank Installation

Posted on: 8 May 2016

One of the hazards that can threaten your home's hot water system is the expansion that happens as water is heated. If your home's hot water system uses a standard hot water tank, that type of storage system can put you at risk of pressure buildup that may damage the tank and the plumbing lines. You can reduce this risk by providing an outlet for that expanded water to go. Here's a look at the basics of installing an expansion tank in your hot water system.

Where Does The Tank Go?

When you're installing an expansion tank on an existing hot water tank system, you'll have to figure out where you can mount it safely. Look for an area where it will fit securely and still be able to reach the pipes. During a new hot water system installation, you can map out the whole system to allow room for the tank wherever you'd like to put it. Your plumber can also tell you if there are any local regulations about placement that you might need to be aware of.

How Is The Tank Installed?

Locate the small pipe piece that's sticking out from the side of the hot water tank at the top. Apply joint compound to that pipe, then wrap plumber's tape around it. Screw on a galvanized pipe tee so that it is secure. The goal is to ensure that the tee is tight and the openings are pointing in the proper directions to attach the rest of the fixtures. If you can't get them into the proper direction, you might need to adjust the tank position. Turn the tank slightly if necessary to ensure that the tee is lined up.

You'll also want to find the longer pipe that sticks out of the hot water tank near the top. Use the same process on this pipe to attach an elbow. Make sure you don't skip the compound or the plumber's tape, because they both help prevent leaks. Finally, apply more joint compound and tape to the thread on the pipe that's attached to your expansion tank. Attach the elbow to the expansion tank, then use the same methods to attach the water lines to the galvanized tee pipe.

An expansion tank is a great way to regulate the pressure of your water system. If you're looking for a way to keep your hot water system balanced, talk with a local plumber about installing one. With these tips, you can do the work yourself. If you aren't comfortable doing that, your local plumbing services specialist can do it for you.

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