Yes, Ben is correct.

There are just too many different possibilities, starting with whether your liner is an overlap (like a giant garbage pail liner) or with a bead into a track. Different decking provides/restricts access, but without good pictures we cannot tell. While Ben is not an AG guy, myself and two of our moderators, Poconos and Watermom are AG owners and MAY be able to help. Plus we have a couple of pros whose judgement we trust, and a number of long-time owners as well.

Carl