Getting a small air leak in the 3/8 upgrade fittings (push fittings) at the shut off valve on the suction side of things. Thought it was commuting from all the air bubbles lining the interior of the tank. Thinking of using the original barb fittings. My pool had such a low demand for chlorine last year that I can probably get away with the smaller fittings. Anyone else have any issues with the upgraded fittings. Just got to get the quirks out, like anything else.