All my numbers are good ch. is 3.0 everything is fine but no reading on cya. I use my 2006 kit and as you know the top of the scale is 30. At that level the water is a scant bit cloudy but not what I want. The chlorine is fine. Guess I better go on down to pool store to get some stabilizer but why wouldn't the ch level be a great deal lower if no cya to speak of is absent?? Thank you Dave G.