Question about Hayward SAND FILTER, PRO SERIES

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I just bought a used but nice hayward sand filter for my pool to replace a older defilter. I want to say i am pretty expierenced with pools and plumbing but this somthg. Connected everythg 40 lbs psi ,blows top off and cant get correct suction . You can disconnect out let and watch whole filter assembly expand what s up?

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Put the valve in recirculate mode and see what happens. Does the pump run normally? If so the sand bed is likely clogged. Did you replace the sand? Another possibility is you have it connected to a pump that is too big for the filter. The tag on the filter should give a maximum flow rate the filter can handle. Be sure your pump is not exceeding it. It is common to see the tank “swell” once the pump is turned on. As long as you stay below the 50psi max you are fine. If you are unsure about flow rates please reply in a comment with the pump information so we can try and determine that for you.

If this answer does not fix your problem, please comment with additional details prior to rating the answer. Positive feedback is appreciated once your problem is solved!


Posted on Sep 07, 2010


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