I just installed a 26x52 (15,000gal) Intex ultra frame pool. I haven't added ANY chemicals yet and have just heard of the BBB method. Is it safe for vinyl pools? Will my liner bleach out? Besides ordering a good water tester what do I need to add first to my water? The pool has been filled for 3 days and the kids have swam twice but I need to address treating the water before I start having water problems. Can anyone share some knowledge?? I am completely new to this site.. Thanks