I have been using the BBB method for about 8 months and love it! It is so easy and much cheaper then chemicals for me! Anyway, I was on another forum (disney related) and someone asked about above ground pools, so I answered and told them I was using the BBB Method and so on. Another poster replied and said I shouldn't be using Bleach in my pool because it will ruin the liner. I never replied back, just figured he was not educated on the BBB Method! He was saying he buys all these different chemicals to use in his pool and buys special "Packs" for opening and closing the pool each year. Anyway, just thought it was amusing and thought of everyone on here when I read it! My local pool supply store guy saw my Dad in Walmart the other day and asked him why we haven't been back yet!! LOL