Using DE in a sand filter

duraleigh

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Apr 1, 2007
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Sebring, Florida
Simply add the DE into the skimmer, pump running, and allow it to be taken into the filter and deposited on the sand bed. The recommendation is to stop adding the DE when your filter psi increases by one lb.

Will it help you? Perhaps....there are those here that swear by it and there are those, like me, that could see no difference. It certainly is neither harmful nor permanent so nothinhg ventured, nothing gained.
 

Rangerman

LifeTime Supporter
May 27, 2007
229
Fayetteville, Arkansas
Just wondering Dave . . . with the DE added on top of a sand bed, do you stand to lose a lot of it during backwashes?
The DE I'm familiar with is for household pests and is as fine as flour. Is DE for the pool filter much bigger granulate?
 

duraleigh

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Rangerman,

When you backwash, you lose it all and must replace it as before. To my knowledge it is identical in texture to that used for pests.
 

HarryH3

Well-known member
Apr 22, 2008
326
Central Texas
DE for the pool is indeed as fine as flour. Around here you can get it at Home Depot for the same price as the pool stores. It goes for $14.95 for a 25 pound bag.