Just wanted to add one other comment--remember that the chlorine kills algae, but your filter is what removes the dead stuff from the pool. If you're still having overnight chlorine loss, you need to get the chlorine back up there to 1 0 and keep it there, as Anna pointed out. Keep the pump and filter running, backwashing as needed, until all the cloudiness is gone.

Hang in there, it will clear up, but the key is to maintain that 10 ppm chlorine level until it does.

Janet