What is the chemical I use while backwashing?

Adding chemicals, vacuuming, backwashing,
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jaxpool

What is the chemical I use while backwashing?

Postby jaxpool » Mon 04 Jun, 2007 16:10

We've had our pool for 9 months and I'm still not sure of the name of the powdery chemical we put in our filter when we backwash, I need more and I don't know what I'm suppose to buy!!! Can anybody please help me? Thanks!!


dynamictiger
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Postby dynamictiger » Mon 04 Jun, 2007 17:13

D.E. or Diatomaceous Earth is what you mean.

HTH
jaxpool

Postby jaxpool » Mon 04 Jun, 2007 18:33

Thanks dynamictiger! Now just one more question when do I put the D.E. in the pool, before or after backwashing?
Buggsw
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Postby Buggsw » Tue 05 Jun, 2007 00:04

You put it in the skimmer after you backwash. So what you should do is backwash until the water runs clear. Close the backwash valve and run the pump for a minute like normal, then backwash again until clear and repeat one more time. Then you close the backwash valve and run the pump and load the DE in the skimmer. Some people like to make a slurry in a bucket of water first. I just poured it in with a 1 lb coffee can as a measure and let it slurry itself in the skimmer. Then add the next 1lb coffee can full, etc. However many lbs your filter needs to reload. Don't get carried away.

What it is doing then is reloading the filter with fresh DE.

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