I received my TFTESTKIT today. I am so excited to test everything. I just did the CYA test. I was just wondering what is the chemistry behind this test. What makes the solution turn cloudy? Is it cloudy as it comes out of the mixing bottle? Since my CYA is so low, I didn't get much cloudiness until around the 20ppm line. (I know that is right though since we just filled the pool in the fall. The only chlorine that has been put in was a once a month dichlor and then I shocked at opening with calcium hypochlorite.) I was just curious how this test actually works. Thanks.