haze said:
Every CYA test I have seen is mix equal parts pool water and Reagent. let it sit a minute or two and slowly pour into tube until dot disappears. Then compare height of water to incremented numbers on the tube to get CYA level.
The aquachem test is identical. fill the large vial with pool water to the first line marked alkalintiy test or hardness test and fill it to the second line marked stabilizer test with the CYA reagent. cap and shake for 30 sencods and
let it sit for 3-5 minutes. It takes a while for this test to fully develop and many people just don't give it enough time.. Shake again and slowly pour it into the CYA view tube until the black dot at the bottom disappears. Read your CYA level on the side of the tube. This will use 20 ml of CYA reagent and give you a 40 ml test sample. You really don't need that much to make this test. I would find something to measure less of each as long as you have equal amounts of pool water and CYA reagent and your sample is enough to fill the CYA view tube. 12-15 ml each of pool water and reagent is MORE than enough to do the test and you could get by with even less if your CYA is on the high side. The important thing is to use equal amounts of pool water and reagent. I would suggest using one of those graduated cups that you can get at the drugstore for cough syrup to measure out the water and reagent.