Piqued my interest so went and watch a couple yt vids on it. I believe I watched your "ramps" method. Looks a bit awkward, but with some patience and effort doable. Being a Rhino ramps user, probably be my choice too. Watched another guy with lift access, he removed wheel, peeled back the liner, ez peazy. Of course, few of us have a lift available to us. Thanks for the reply.Filter access is a mixed bag.......