Anodes for rust prevention

Its usually only when your water heater develops a major leak does the culprit called rust come to light, by then however the damage is done and its too late. A rod called an anode (sacrificial anode) is fitted in the water heater tank to prevent it from rusting. The anode counteracts the small electric voltage that is set up between water and metal by wearing away instead of the heater. As long as the anode is in good condition the tank damage is greatly reduced. Sadly it is not possible to see the condition of the anode by just looking at your water heater. You have to turn off the power and the water to the water heater and remove the anode with a wrench. Check the anode for deterioration at least twice a year; this will give you an idea of how long the anode will last. You can then include its replacement in your maintenance schedule accordingly. Greenwich Plumbers know about anodes. To stop the damage to the tank you can replace the anode, the anodes come in different shapes and sizes, be ready with the details of your system so that you get the right one. You can find this information on a label on the water-heater housing.

To replace:

1). Isolate the power to the heater and the cold water inlet valve on the top of the heater. Unscrew the hex bolt holding the cathodic anode in place and remove the old one or what remains. Install the new anode. A Greenwich Plumber can replace this. Fit the new piece in the reverse order that old one was removed. Be sure to use Teflon tape on the threaded fitting to prevent a leak. Turn the water and power to the water heater back on.

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