I posted last month on the 13th of march, that my CYA was below 30. Now when saying this, I could clearly see the black dot when tube was filled. I also did testing with back to the sun, and ran the test 3 times with the same results. The next day I applied stabilizer with a sock dipped into the pool by the return jet, and by the following day, my test was reading at 50, just where I wanted it. I too ran that test 3 times, and all gave me the reading of 50....Now april 8th, not even a month has gone by, and my CYA is back below 30. Note: no swimming has been done, so no loss of water with splashing. No leaks what so ever, for I monitor my water level daily. Only water loss is by weekly backwash, and when it rained hard, I had to release water, for above the max crest line on skimmer. So if I assume by backwashing and rain water release, the most is about 4" of total water. Now before I go get more stabilizer, I do still have full bucket of pucks that I never used after adopting the BBB method. How many pucks would suggest, and can I still add bleach with a floating puck dispenser? On a side note, ill be cleaning my wedding cake stairs today, for I have removed them for the winter months...Its getting closer to opening day ppl !!!!!!!!!!!!!