heres my pickle. every year i drop the ball and open a green monster pool. i try to chlorinate it before i remove my mesh cover every week but i guess im just not on top of it often enough. here are my thoughts please let me know if im heading down the correct path. i open on memorial day weekend and live in maryland

1-Try to keep FC about 3-5 by adding chrlorination every 2-3 days as needed(will take some persistance of course)

2- Purchase a tarp/cover to fit over the mesh saftey cover i currenlty have to block sun from forming algae.

3-Adding a large ammount of algaecide instead of either of the above.

Im trying to pick the best and most cost efficient option. I feel if i had purchased a solid saftey cover instead of mesh i would not have to worry so much about fc levels in the closed pool since the solid cover blocks the sunlight.
Is my thinking correct here also, no sunlight means no algae growth even at low to no FC levels?