Could this be pump cavitation, did you make any changes to the navigator/suction side.
Could this be pump cavitation, did you make any changes to the navigator/suction side.
LOL, when I've tried to drive my navigator to aggressively it will cause bubbles to appear in my return lines.
This is the same principle of the bubbles that develop on a boat propeller.
Outstanding!Well not sure. We opened the pump basket and cleaned out the o ring area. It had some small leafy stuff. Looked for anything unusual in there. Found nothing. Turned it back on, the pump was priming ( is that right?) realized it was time to backwash. So we did that too.