New Member here! Happy to be aboard. 3rd year with this pool, year 1 fine, year 2 floundered, 3rd attempt, drained pool and started again. Received my TFTest kit and used Pool Calculator to add chemicals. Added chlorine 10% HomeDepot, powdered CYA (in stocking), Calcium & Borax. 24 hours later (and one tropical storm), zero chlorine. Help!