Ok, so I “inherited “ this pool with the new house. When I moved in it’s quite the green pond, and CYA tested up around 160(. I had to do the half tap water method to get a result I could read). I drained around 3 feet of water and replaced with fresh, and now CYA tests around 70. Is it ok to start SLAMing this pond I have? I know it will take more chlorine, but I hate to dump more water. Thanks!!!!