Since Intex basically sells every part but the split nuts or hose nuts, I was trying to figure out a way to hard plumb the pool and not have to sacrifice my hoses. I finally got a 2650 sand filter, and boy I am glad I did. What a huge difference it makes and I can actually vacuum the dirt off of the bottom, what a concept. Anyway, I want to keep at least one set of hoses as a backup in case my sand filter would go kaput and i could easily swap in the crappy 1500gpm pump that came with the pool as a backup.
For kicks I did try to use a 2" FPT PVC adapter instead of the intex nut and box adapter idea that others came up with on this board, and while it started to screw onto the intex fittings easily giving me hope......... it started tightening up too early and I just couldn't screw it on far enough for my liking and was worried about leaks.
A couple of thoughts I had in creating my own hose nuts, the solid drain outlet cover (part 11131 @ $1.54/ea) obviously fits the intex fittings and my idea is to dremmel out a hole in the solid cover to fit the Cantex/Carlon box adapter. But, then I discovered that the filter housing nut (part 11261 @ $1.57/ea) on the 2650 that attaches the filter to the pump already has what appears to be a 1-1/2 inch hole in it. The hole would have to be dremmeled every so slightly to account for the thickness of the Cantex/Carlon box adapter thickness and whala your own intex nut. These may work as is if someone would decide to use 1-1/4" PVC instead of 1-1/2" PVC. I have not tried this modification yet since I do not have any extra filter housing nuts on hand. When I get around to hard plumbing the sand filter to the salt water I may give this idea a whirl. Just thought I'd share in the event someone else is also trying to rig things. Post here if you end up trying this idea, I'd love to know if it worked.