adding DE

darragh

Member
Jul 31, 2018
15
canada
a new filter system added last fall at closing, has not been used as yet... will adding DE harm the system or invalidate my warantee
I believe it is a sand filter system
 

YippeeSkippy

Mod Squad
LifeTime Supporter
Jan 17, 2012
14,804
Evans, Georgia
When you add a "little" DE to a sand filter you're only adding about a cup or just enough to raise your pressure 1psi. DE sits on top of the sand. When you backwash you'll then lose that DE and will have to replace it if you want to continue using it.

I can't comment on your warranty, as I can't recall anyone ever having a warranty problem with sand filters???

Maddie :flower:
 

darragh

Member
Jul 31, 2018
15
canada
When you add a "little" DE to a sand filter you're only adding about a cup or just enough to raise your pressure 1psi. DE sits on top of the sand. When you backwash you'll then lose that DE and will have to replace it if you want to continue using it.

I can't comment on your warranty, as I can't recall anyone ever having a warranty problem with sand filters???

Maddie :flower:
 

darragh

Member
Jul 31, 2018
15
canada
I should have asked if I would add DE after each back wash until pool is clear....or only once in a while....I have had to hire a weekly cleaning service at $100.00 a time, so will be backwashing it myself between their visits.
I am a Sr Sr. I can add DE to the pool as needed but unable to do the in between cleaning that it may need.

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YippeeSkippy

Mod Squad
LifeTime Supporter
Jan 17, 2012
14,804
Evans, Georgia
We only recommend you to backwash when your filter pressure rises 25% over baseline. For you, having added DE, your baseline would include that 1psi of DE you added. Don't over backwash, a slightly dirty filter actually cleans better than a spotless one.

Maddie :flower: