Mu question Is, I assumed the cya was 0 since it sat all winter. I used the formula and added the correct amount to get to about 40 ppm of cya. However it is testing st about 70 :/ I've done the test several times and still got 70, but I have been SLAMing for a few days. Is the cya likely that high or is the results skewed due to adding chlorine ?

My ph is reading 7.2