[EricH]

Originally Posted by gorrilla

actually it wouldent be that hard just make a square and fill it with water and draining wouldent be a problem because most arenas have drains in the floor

Where does the water come from? How deep? Dimensions? Can the drains handle it? How long to fill/empty?

Also, a square cannot hold much water. It takes a 3D structure to do that (if it weren't for surface tension).