I just moved into a house that had a pool, the house was repo'd and the pool cover was open a little, it sat there for prabably 2 years without anyone touching the thing, I bought the house opened up the auto pool cover and a rope snapped so it wont close. the water was terrible, dead mice, gophers, birds, sunk and floating. water greenish black and only about an inch visablity. Anyways long story shorter, I ended up draining the pool scrubbing as clean as I could get and refilling it. Looks better now, Tommorow the guy fixes the pool cover to keep leaves, and animals out of my pool. I am excited and wanted to say hello. Also I really like the BBB idea, does it really work well? I filled the pool from my well, it is free water. I hope that is fine, I am getting a water tester tommorow as well.