I am ready to quit. Seem to be going backward. Still loosing about 6-7 ppm FC over night and 1-2/hour during the day. Now at close to 100 gallons bleach. This morning my CC was back up to 2. I need to have a life besides my pool! I have not allowed the FC to get below 10, keeping it most of the time between 12 - 18. Everytime I think we are making progress, i get another high CC reading! One possibility - the birds like our backyard and we have noticed a fair amount of bird droppings on the pool deck. We do cover the pool with an opaque automatic cover at night, but if droppings are getting in the pool during the day, could that be adding to my problem? I thought the sun was supposed to help the CC go dissipate quicker, so I have been uncovering it during the day - should I try leaving it covered?