Im BBB ,I have been using bleach only but been putting in alot lately and it doesnt stay , I have a test kit. last year my CYA was over 100 . so I am carefull not to add stuff with stabilizer. I used some pucks last week and my CYA is up to 20 was 0.. I have3 bags of dichlor and 1.5 gallon of 8.25% bleach at the house