When I backwash, things run normal for about 20 sec then the pressure gage goes to zero and the water leaves the glass sight. What could be the problem?
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#1
When I backwash, things run normal for about 20 sec then the pressure gage goes to zero and the water leaves the glass sight. What could be the problem?
#2
Welcome to TFP!
Either an air leak or a suction side blockage could cause that problem, but if either of those were the problem it should also fail when not backwashing. I suppose there could be something wrong with the multi-port valve.
When you are having problems, does the pump sound change? Does the pump strainer basket fill with air? Do you notice anything else unusual happening.
19K gal, vinyl, 1/2 HP WhisperFlo pump, 200 sqft cartridge filter, AutoPilot Digital SWG, Dolphin Dynamic cleaning robot
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#3
IT sounds like a torn/damages spider gasket in the multi-port valve, been there...Originally Posted by stacy71
Do you have any similar problems when vacuuming to waste or on a rinse?
Triad Region of NC
18x37 Vinyl IG (24,000 gal.), BBB & GoldLine AquaLogic PS4 SWG, Hayward 1 HP Superpump / Hayward Sand Filter / Polaris 280 cleaner / 6 deck jets / Sheer Descent Waterfall (in coping) / Brick Red Concrete Coping / Stamped Concrete Deck
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