Also:
There are gizmo devices for AG skimmers.
I did remove the weir and the skimmer basket.
Aquadoor requires that you remove your skimmer front plate (and your skimmer) to install which requires lowering water level below your skimmer and you run the risk of the liner slipping awat from the skimmer - Low risk but possible.
If you use a solid cover, you will need a cover pump and you wil neded to monitor / maintain the water level on the cover throughout the winter.