u/Few_Cold7921

Ever since we switched from DE to sand, the pool has pH swings, and this is the 3rd time it’s been green. Leslie’s said use “Green to Clean” then brush, and shock, every 12hrs and clearaid…

Any ideas? Is this sand filter too small? Backwash? Pool is 13500 gal.

Any advice is appreciated.

Repairman quoting me $3500 for new lights, does anyone have experience with these? Are they even legit?