D.E. filter blow back

Pool pumps, pool filters and the plumbing of
swimming pools. Sand filters, cartridge filters,
fabric filters and alternative filter media.
pool whisperer

D.E. filter blow back

Postby pool whisperer » Tue 25 Apr, 2006 20:59

It could be a couple of things. If you have a solar system it could have a bad or jammed check valve. Or if you are running high pressure on the filter when the system shuts down it has to release that pressure by back flowing thru the pump and out any suction ports that are open.

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