shock amounts with calcium hypochlorite

rindy

0
May 12, 2009
15
Why does the pool calculator suggest using so much more shock than on the back of the product. I have Leslie's SuperPowderPro 73% and it says to use 1 lb/13,500 gallons. It is way more than that if I use the suggested level for green algae on the Pool Calculator. Thanks!
 
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