Question about Pentair "Pentair" In Ground Pool Pump At251501

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Pent air pool filter

When I clean the DE grates in my pool fliter I get DE coming back into the pool. After a day or two it stops and works great. Is this normal? And what is causing this? Am I adding too much DE? Thanks, Glenn

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Glenn,

Yes, a certain amount of DE will go back into the pool after a backwashing. But, it is a lot of DE, then you may have a tear in one of the grids that is allowing the DE to return to the pool until there is enough to coat the grids and stop the DE from leaving the filter.

Another item that can cause this issue is to much DE. Pentair recommends that you mix the powdered DE in a 5 gallon bucket with water in it, to the consistancy of whole milk. Then slowly pour the mixture into the SKIMMER closest to the pump, allowing the DE to flow evenly through the filter.

If you just backwashed the filter, you will only need to add back in 80% of the start up DE. The ONLY time you add back in the complete 100% of DE is when you take the filter completely apart, washing the grids and the inside of the tank.

Posted on Jul 10, 2009

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Buddy is this happening, after the pump turns off or during.. Need more info.. type of filter.. Sometimes the sleeves on the neck area of the panel. Where it mates with the manifold slide down, you will have a small opening. Might be from their.. Could be a hole on one of the panels. Do you have a push/pull valve or a multiport valve (to back wash)

Posted on Mar 11, 2009

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