I got my test kit yesterday and the CYA tested at 30 ppm. I am SLAMing the pool. The overnight FC loss test shows a loss of 1.5 ppm FC. I tested the CYA again to make sure what SHOCK FC level to use and it tested at 45-50 ppm. Is it user-error on my part or does CYA go up with SLAMing? Just wondering and going to use the new reading to SLAM the pool today I guess. Any thoughts?