Quote Originally Posted by aciam View Post

so, here are my questions. Why does the CC keep climbing so incredibly high? the sand is changed and clean and has no residual baquacil in it and my baquacil readings on day 6 were 0.

Is it the free chlorine I am supposed to keep at 12-15? what about the total being so high?
The CC is climbing high because the chlorine is still trying to kill off something in the water, probably leftover residual from the Baq and other Baq products. If you changed the sand before all the Baq goo was gone, then you probably do still have some in the filter and will need to change the sand again, once it's all gone. We normally recommend that you get to the point of no CC and holding chlorine overnight before sand changes, and that is why.

Yes, the FC needs to be 12-15 ppm in order to kill off whatever is causing your CC. If you keep the chlorine up, the CC will eventually come down and the gunk is removed from your pool. Sometimes it just takes a lot of patience, persistence, and being very diligent about keeping the chlorine high.

Janet