Thank You PoolDoc,

How do I know how much stabilizer I should add?

I have the K-2006 kit and a small 5 way test kit. Chlorine, Bromine pH, Acid Demand and total alkalinity. I'll get the HTH 6-Way kit.

My K-2006 kit came with 2 - 22 ml bottles of R-0013(or I bought an extra one somewhere). One bottle is empty and one full. With one full bottle I think I still have 3 CYA tests. The pool is about 20X40 and 11 feet deep below the board. If I get the HTH 6-Way, I should have another 3 CYA tests in it?