You quit using dichlor and switch to bleach when your get your CYA where you want it. For most pools, we say CYA around 50 or so. One of the mods, Aylad, lives in hot Louisiana and intentionally runs her CYA at around 80. This causes her to have to keep her chlorine higher than most (see Best Guess Chlorine Chart in my signature above) but the upside is that she doesn't have to add bleach as often. You might try having your CYA around 50 and if you find that you are having trouble keeping chlorine in your pool, bump it up a little then. (If you do bump CYA up, you will HAVE to have a Taylor K-2006 or else you won't be able to test high chlorine levels. My advice is to go ahead and get one anyways. It is by far the best kit out there. See the link in my signature above.)