Outdoor (60% shaded) 22,000 gals: Mosaic tiles (concrete grout), 011018 IntelliFlo VS, Clean & Clear Cartridge Filter CCP320 filter, IntelliBrite 5g LED, Prozone PZ2-4V, Blue Devil 8way Tester, Taylor FAS-DPD Chlorine Tester K-1515A (you need this period—OTO is pretty much useless)
