I have switched to the BBB method about 2wks ago & started with a somewhat green pool with just about no chlorine. It was clear until we started having about 3-4 wks of constant rain that caused all kinds of problems. I then decided to go with the BBB method & have got all my tests in shape but the water is still cloudy at about the 2' mark down. I have know idea why it has not cleared up yet. I backwash & rinse everyday for the last week or so. I had purchased a 6 way test kit from Walmart before I started working on the BBB method & plan on buying a better kit when I use up this kit.