Swimming pools blog

Hello all.
I have an 18×36 in-ground outside of Boston MA. My chlorine level is
fine, and the water is crystal clear. However, my vinyl liner is
covered with a yellow/green film. I don’t think it’s algae given the
water quality. Safe to assume it’s pollen? The pollen has been
brutal up here this spring in general. I vacced up as much as I
could but it’s hard to get every single spot. Will the clorine
eventually bleach it out or do I need to vac every bit?
Thanks!