Re: Why the bleep dunk these things in salt water?
> Also worth pointing out, water pressure increases about 1psi per 2 feet...
From the article: Inside, the servers are also immersed in a dielectric coolant, which conducts heat but not electricity.
I.e. the pods are filled with liquid which is as incompressible as the water outside, so no need for any diesel pumps to pressurise them, just a simple equalisation mechanism (squeezy bag).
Though you do want to be careful of any gas pockets within the kit itself, so SSDs instead of helium-filled HDDs perhaps.