Hello, I was referred to this site by a friend. I live in Lynchburg, VA. My pool is 25,000 gallons, below ground, built in the early 80's. It has a vinyl liner, 1hp pump with 3450 rpm and 56j FR. It has a sand filter and the water is clear right now. I am interested in the BBB method to save money. My test results are as follows, TH, TC, FC, BR, stabilizer, are all very low. The ph is 7.2. I have been using chlorine tablets and powder shock and baking soda. I need advice on how to treat my pool. Thanks, Jared