First full test after SLAM and CSI?


Bronze Supporter
May 24, 2016
Owensboro, KY
Just ran first full test after slam:

FC 6
CC 0
PH 7.5
TA 80
CH 100
CYA 30
CSI -0.62
Looks like the numbers are all okay - but the CSI is in the red and I'm not sure if I should be worried about it?


Gold Supporter
Jun 28, 2017
Fresno, CA
Pool Size
Rest easy. Your vinyl liner is not affected. You can let your pH rise a bit and water temp will also raise CSI. Play with Pool Math and note the changes.
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