Hello, I'm a total noob to the pool world but even I know my pool should not be this shade of green. I started by thrown some chlorine in to kill off the algae but I don't seem to be getting very far. The pool is a slightly lighter shade of green to day but I think I'm still a long way off from doing anything effective. Here are my test results this morning, where do I begging to fix this mess?
Combined Chlorine: 1
Free Chlorine: 0
Any help would be greatly appreciated.