My 9002 has been running for 14 hours and makes a slight gurgling noise, is this normal? I know the u.s. pumps stronger and adjusted my water level accordingly, and also restarted with the valve closed but still hear noise...
It will do this until all the water is out of the airline. You could disassemble it, blow out the airline and reinstall it as we spoke about earlier and the problem should be solved. Otherwise it will take a few days to purge the water trapped in the airline.
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