I had my pool running since February, never been in it. Go away for 3 weeks in April, put solar
cover on it for first time while I was gone. Came home to dull water and green spots.
I have filter running, brushed sides and taken cover off.
1) how do I address the algae and get rid if it?
2) Did the bubble solar cover affect the PH while I was gone.
Pool is on auto timer.
currently; PH - 9 / ALK 180
THANKS FOR YOUR HELP