Making Cube out of 2 x 33G?

[sphelps]

Originally Posted by fortheloveofcrabs

Seems scary to me... you are doubling the water volume, and upping the pressure behind the glass - trying to push it out. I wouldn't. Just my 2 cents.

As stated before volume has nothing to do with pressure, only hieght (pressure = density * hieght * gravity). The only force that pushing outwards on the glass is a hydrostatic force cause by the pressure.