Adjusting automatic air vent on a water boiler


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Old 01-14-23, 01:08 PM
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Adjusting automatic air vent on a water boiler

Had to put on a new air vent canister on my boiler today, there's a little blk plastic cap on the top of the vent, do I keep it closed tight or do I turn it to loosen it up a little?
 
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Old 01-15-23, 04:22 PM
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Loosen but do not remove. Don't want dirt settling into the vent and causing a long-term problem.
 
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