Water heater girgling

Old 09-21-07, 10:23 AM
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Smile Water heater girgling

When I turn off a faucet or after toilet completes it's flush cycle I hear a girgling noise from water line connected to top of water heater . Does anyone know what causes this. Not sure if it is air in the line or what. Is this correctable? Thanks
Old 09-22-07, 04:37 AM
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By running hot water you have added cold water to the heater and it may now be heating. That may be what you hear. Calcium and other 'stuff' can accumulate in heaters and sometimes makes noise during heating. This can also reduce the efficiency of the heater. Periodic flushing of the heater helps keep this to a minimum, and can improve heater life. To flush, attach a hose to the spigot at the bottom. Run the hose to a floor drain, sink or into a bucket and open the valve. Caution, this is hot water. Run the water until it runs clear.

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