Originally Posted By: wbuffetjr
.....I thought the pressure in the airline would keep water from backing up the line?

Thay are going up again next weekend. We will see if anything changes.

FWIW My diffuser stations have check valves. Unless the valves fail, it's not possible for water to go back up the line. If you remember what diffuser brand you have, should be easy to verify if they have a check valve.

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You'll never know what ya can catch unless you wet a line!