Photok

Im trying to settle and argument between my father in law and I. The previous owners left a fairly new "used" 6 person in-ground hot tub uninstalled near the pool. I wanted to get rid of it but my father in law thinks that we can just build an above ground "shell" for it and incorporate the piping into the in-ground pool system. Im fairly certain this CANT be done. I once read that there was a difference in how the in and above ground hot tubs were made. Am I correct? Is it possible to build an above ground frame to house it? Or can In-ground hot tubs ONLY be installed in-ground for water displacement reasons? Please educate us! Thanks in advance!