Just had a Gunite pool put in. im a noob but do most chemicals myself. I was using Leslie pools for some testing thinking they would be more accurate then doing it myself and a few measurments I dont do. I’m not so sure they Are any good so am going it alone. I use stabilized 3” chlorine blocks and now have cya at 70ppm. I live in Houston so it is sunny but I was wondering if this is too high? Should I switch to unstabilized blocks to stop the cya going higher?