Strange when they put
' Pure water is simply tap water with all minerals removed, so pure water can be left to dry without leaving any marks on the surface - no squeegee required'
But then advertise
Then the operator simply flips the Glasshopper around and uses the powerful vacuum squeegee to leave the surface perfectly clean and dry with no water run off or drips'
??
So...you don't need a squeegee but you've got to flip it round and squeegee the water off! Lol