Any views on this index (link below)? If it is useful? If so can Ben's excellent calculator for CYA be adjusted for shocking?
Is it correct or not, that temperature also has an effect on the strength of chlorine; or are the numbers not that meaningful?
I created a simple excel spreadsheet and if you run the numbers on a pool with 70 CYA, 3 FC, and a pH of 7.9 it is scary. Looks like all the people I know in Hawaii who have saltwater pool and stick to these numbers need to buy life insurance. "I'm swimming in my own private ocean, my dear." This maybe true but an ocean of what?
http://www.caromal.co.uk/Resource%20Page%205.htm
Looking forward to your replies.
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