We are having a new above ground pool installed this weekend and I want to be proactive on buying the chemicals we will need. We already purchased the Tf-100 test kit so we are set there. The pool is a 27' 54" above ground pool with a 250lb sand filter. We will be filling it with city water (haven't tested it yet). It will probably take 3-8 days after pool installation before we can get the electricity run for the pump/filter. We definitely want to use the BBB method. How much bleach should we have on-hand to start? What other chemicals and how much should we buy? Thanks in advance!