I am working on getting my CYA up from 20 to 40. I have following the advice of the boards and put it in an old sock and submerged it in my skimmer. It's been 24 hours. Three questions. 1. How long should it take until the sock is empty? I was shocked to find it is still full after 24 hours. 2. How long do I need to run the pump for 24/7? 3. I know it takes a while for the CYA to register. In the meantime should I be calculating/adding chlorine based on a CYA of 20 or my goal CYA of 40?