So I recently changed the 3/8 fittings with the original barb fittings to see if my air bubble situation would resolve. the bubbles are definitely coming from the tank. When I tap on the tank I can see the bubbles pass through the tubing. the air gets trapped in the flow guage, otherwise probably wouldn't be a big deal. I tried wiping all bubbles from the interior of the tank but they form back on the sides. is this a typical occurrence that others experience with the liquidator? A reaction with the 12.5 and pool water? Can't figure this one out.