I ordered a cya test kit and waiting for that. But in mean time Sunday I found that I had some test strips with cya test .... On Friday I purchased 4 gallons of bleach. I added a gallon Friday ,Saterday, Sunday just to keep 2.0 FC. Sunday strip test said zero cya. I added 1 pound stabilizer. This morning zero FC and I added 1/2 gallon of bleach.. I know I need to wait on stabilizer... And not risk raising it to high...