Anode rods, also known as sacrificial rods, are among the most important plumbing parts in your hot water system. They typically wear out much more quickly than the water tank itself, making them essential to extending the service life of your water heater for as long as possible. In the following guide, take a look at what they are, how to check their condition, and when to replace yours.

What Are Anode Rods?

Anode rods are used to protect water heaters from corrosion by absorbing any corrosive elements present in the water. They’re made of metal that’s more reactive to these elements than the metal of the water heater tank. The anode rod works by attracting the corrosive elements in the water, thereby protecting the tank from corrosion.

How Do You Check Them?

Anode rods should be inspected at least once a year and replaced if necessary. This will keep the water heater running efficiently and help prevent damage to the tank. To check the rod, it should be removed from the water heater and inspected for signs of corrosion such as rust or discoloration. If the rod is corroded, it should be replaced with a new one.

To check your anode rod, first switch off the power or fuel source to the water heater. Next, turn off the cold water supply and let the water in the tank cool down. Once the water is cool, locate the anode rod. It should be located near the top of the tank and is usually connected to the hot water outlet.

Remove the anode rod from the water heater and inspect it. If it’s heavily corroded, it should be replaced. If it’s still in good condition and less than half its original size, it should be replaced as well. When replacing the anode rod, be sure to use one that’s compatible with the make and model of the water heater. An annual inspection is also a good opportunity to replace any other worn plumbing parts in your tank, such as valves or thermocouples.

When you’re looking for a new anode rod or other replacement plumbing parts, get in touch with the team at Day’s Plumbing Supply in Lexington, KY. Serving area residents and plumbers since 1968, they carry an extensive inventory of plumbing supplies, including anode rods, plumbing fixtures, and pipe fittings. Visit them online to learn more about what they offer, and call (859) 254-6148 to place an order or discuss your needs.