Above ground pool SIMA Liberty (yr 2005) 27' by 52" - 18 800 gallons
Sand filter Jacuzzi Aquamax225 (yr 2004)
Sta-Rite pump 3/4 hp (yr 1995)
I just tested the water with a 6way-HTH test kit
CL 1.2
PH 7.2
TA 50
TH 260
CYA goes up to 30 and I could barely see the black dot
Since we opened...