You have two closed water tanks. One tank is taller that allow pressure to build up from the shear weight of the fluid. And the other is alot shorter that is pressurized. If the pressure on the bottom of the tall tank was 5 psi and the pressure in the small tank was 5 psi. Would they both exert the same force? Or would the small tank have a stronger force on account of the tank being lower volume and have a high pressure.