Search results

Year old above ground pool, gunite, screened in FL. Water chemestry good.. PH 7.6, Salt 3600, CYA 80, Phosphates almost 0, Alkalinity 100, Calcium 70, Nitrate 0. But chlorine at 0 even at 100% output for 8 hours a day with IC 20. This is the 3rd unit from Pentair in a year!!! First one died...