I’m thinking the the floor and knee walls would be a poured cement. But how would you get a water tight seal between the material for the base and the clear material overhead? (Can you provide links to products that could make this connection)
Very heavy polycarbonate. It looks like the arches that were custom made for the underwater tunnel at SeaWorld and other attractions. Very, thick, heavy and expensive. Between the arch sections and where they meet the floor or wall there have to be compression joints or thick, cured in place sealing materials.
I wonder if you can ask them to chum the water. :eek:
I always wondered why they needed that to be transparent. I guess they couldn’t have had that scene if they just go to the junkyard and end up with a load of 2nd hand metal plate.