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Posted by Ken on May 16, 2006 at 16:27:01:
In Reply to: Re: Exspansion Tanks posted by Tony Conner on May 06, 2006 at 14:17:10:
: In addition to the previous suggestions, if they're plain steel tanks (no diaphragm), then an airtrol fitting is required to prevent the tank from slowly waterlogging. The airtrol fitting screws into the connecton on the bottom of the tank, and has a copper tube that extends up into the tank, above the water line. It prevents the water from gradually absorbing the air in the tank.
Tony, I thought the airtrol was simply a vent to facilitate draining the tank. Could you explain how it prevents the water from absorbing the air. I have read a lot of your answers and am pretty sure you know wnat you are talking about. Thanks, Ken
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