If your CC is high, you need to raise the chlorine up to shock level until the CC goes to zero, then let it drift back down.

You shouldn't need an algaecide if you properly chlorinate your pool, and a lot of them cause foaming problems, as well as add copper to your water that causes staining and green hair, so it's best not to add any of it if you don't need it.....a lot of our forum members only add it when closing...I never add it at all. Bleach is the only algaecide you really need. If you do add algaecide, we recommend polyquat because it doesn't cause the problems I mentioned above.


Janet