How much D.E.

Adding chemicals, vacuuming, backwashing,
brushing, filter care, filter cleaning, replacing
worn or broken pool parts
Dave b

How much D.E.

Postby Dave b » Sun 25 Mar, 2007 11:00

I have a Pentair 4000 series filter. How much D.E. do I use? My pool is about 15000 gallons.


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