So long as you don't have an underwater luminaire in this storable pool, the use of UF to serve a remote receptacle in the yard for the double insulated pump is allowed.
680.6 allows the pool receptacle (within 10-20 feet)to be fed with UF.
If you do have a luminaire, then the requirements of 680.23 kick in, and an insulated ground is required; 680.33
