It’s gotta come off like that. There’s no other logical way.If it does come off like that then it doesn’t come easily. I’ve tried Pulli GN and twisting but it’s not coming.
My regal skimmer is also tight when I push it all the way in, so I basically sit the cup on top. It still has a watertight seal, and I don’t have to wrestle it out during maintenance.
Try holding the skimmer body down and pulling the top off.