Had our pool nice and clear for a bit. Now it is crazy green.

Cya- 50ppm
PH- 8.0 or higher
ALK- 80 ppm
FC- 7.2 ppm
CC- .6ppm

Just vacuumed to waste this morning.
Could you please lead me in the right direction here. I've just added algaeicide. Lets hope it helps!

Thank you!!