24' round above ground. Pool was not covered this winter. Scooped and vacuumed leafs then began super shock with bleach. Water went from black to brown and now Army green. Changed sand once. FC has held at 13 to 14 over night and 10 to 11 during day for last 3 days. Can barely see objects on bottom; water still green. Vacuuming every day. PH is 7.5, CYA is 35. How can I get water clear?