I know when mom & dad put this pool in 30 + years ago they told mom if they have a solar cover on, they should change something to not have the side skimmers be the intake & switch it over to suck off the bottom.
I know in the side skimmers when I take the float & basket out there is a flap to switch over, I was thinking that was to use it as the vacuum, but maybe that's what use to close it.
do the bottom skimmers work all the time? maybe they do, because the liner is faded around those bottom skimmers.
Mom's pool is large, 50,000 gallon + and she has a sand filter.
Any thoughts on how to switch this over is appreciated