szmad

Location
CA

Signature

IG, vinyl (27 mil), 12,000 G, Apr 2016, OREQ TK400 test kit
Pentair Tagelus sand filter, Intelliflow variable speed pump, automatic cl/br feeder
solar bubble pool cover, full sun ~8 hrs/d, water temp 79-84 F May-Oct
municipal water supply has low nitrates (<0.4 ppm), sulfates, turbidity, TDS
don't know about phosphates, but suspect they are low (no agriculture around)