Adding a (sand?) filter

kma_97

Active member
Jul 16, 2022
42
California
Hi All!

I have inherited a Pentair Wisperflo WFE-2, 1/2 HP pump (Link) for the fountain (the fountain is about 660-700 Gal). There's no filter, just a pump, so keeping the water clear is a bit of a pain... I was thinking of plumbing in a sand filter after the pump, but I don't want to add a huge one, given the size of the fountain. Considering something like a 14" (which is already an overkill, but can't find anything smaller...) sand by Raypak (Link), but it has 29 PSI max working pressure, and according to Pentair support, the pump's working pressure is 40 PSI (well, they weren't too specific... they said "40-60 PSI", but after repeated inquiries, said that the "normal working pressure is 40 PSI").

Please advise.

Thank you!
 
That means the pump can push 40-60 PSI if the filter gets clogged enough, which I doubt it can.

Backwash the sand filter when it gets into the 20s and before it hits 29 PSI, and you will not have a problem.

Chances are by the time the filter gets that loaded up your fountain will slow to a trickle.
 
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