Using tfp in spa for now over 2 years and works like a charme. Using stenner like pump to inject liquid chlorine during filter cycle.
I noticed suddenly that the poolpal app that i use for recording values is suddenly showing weird numerbs for CSI and LSI.
Temp 102.2 F
Poolpal gives me a CSI of -0,85 and a LSI of -0,84 and warn's with corrosive
Poolmath calculates a CSI of -0.42, no clue what the LSI is.
I guess that since the spa is kind of fiberglass this would not be a problem but would like an expert opinion on this.
(BTW poolpal was calculation correctly on android pre 6.0.1)
Thanks in advance,