A compartment nearly filled from deck to overhead, with nearly every cubic foot of the compartment occupied by flooding water, the remainder by the trapped air on top.

A compartment completely filled from deck to overhead, with every cubic foot of the compartment occupied by some solid material.

A compartment nearly filled from deck to overhead, with nearly every cubic foot of the compartment occupied by flooding water, the remainder by the trapped air on the bottom.

A compartment completely filled from deck to overhead, with every cubic foot of the compartment occupied by flooding water.