Located in Chapin, SC near the shores of Lake Murray. First time pool owner. Bought home with an 18' x 36' (27,000 gals?) cement pool with plaster coat. Hayward sand filter with a Hayward Vari-Flo XL valve.
Using the Taylor 2006C and K-1766 test kits.
Edit April 2024: Switched over to SWCG using the Circupool RJ60+ and SmartFlo SF2.0P VS pump.