Ok read lots of info here. after careful deliberation, I decided to do a major drain and refill. The cya was off the charts and algae ruled. The reason was the use of the pucks. I drained the pool down to 6 inches and vacuumed the major algae as waste. I refilled and now have the pump running. I purchased a leslies test kit, for now, because it has the CYA test included. I will order the taylor in a couple days. after the refill , the pump ran all night. This morning I took some tests and these were the results. PH-8.2 CYA-30-40 and no reading other than FC .5 or just clear, assuming zero. I read that the first thing is to get the PH to its proper balance, low side would be good. So my goal is to shoot for 7.2. After that gets down I plan to SLAM it ! I used a small dose of muriatic acid from home depot, around 64 oz. An hour and a half later the level was at 7.8. A decent change from 8.2. should I try another means to lower PH ? Im out of acid and was on my way to store. My question is how often to administer, how far in between, and when to test after dosage? I plan on using bleach to SLAM.