Fig. 122: Pipes and valves in the engine room of the SS President Coolidge. I didn't want to go deeper than 47 meters. That's way too deep for a single tank and also on the limit for plain air. Espiritu Santo, Vanuatu. Nikon D200; Δt=1/125 s; f=22 mm; f/4.0; ISO 100; 27 July 2010 23:51:09
