I was in exactly the same position when I found this forum. I found the partial drains to be a real pain. My chlorinator is just hanging out in case I decide to add CYA with Trichlor. You will jump right back up faster than you think, especially if you have a heat wave and those pucks turn chalky and vanish. You will have an algae bloom as well. And no decent way to deal with it because the high CYA and high enough Cl to shock will take forever to come down. Who wants the work of taking care of a pool you cant swim in? The pool just becomes unmanageable in my opinion. Sure, I have control issues. BBB satisfies them completely!