today i saw a pump indicating it was for use on pools,hot tubs,spas.it had a UL recognized component mark and a capital C with a small sa inside.i remember that as being the mark of another testing agency.this pump was shipped to the pool store with a 6' 16-3 cord.it also had an external bonding lug.my thinking is it would violate 680.7 for permanent pools and presence of bonding lug would indicate it's not for storable pools.the only use i can imagine would be in the category of 680.42 A(2) for cords not longer than 15' in spas and hot tubs.