I think I will give the shop vac a try for now. I was leaning towards the Swimsafe Supa-Vac because besides using it in the pool I could also have used it to empty the fountain I have on the deck which is difficult to completely empty. But I just never thought about using my shop vac which is a 16 gallon one that should work. And I have a 25' hose for it.
Cool. Thanks 7sanders.