What is the minimum overbottom pressure for surface supplied MK20 diving?

The minimum overbottom pressure for surface-supplied MK20 diving is 90 PSIG. This specification is crucial because maintaining the proper overbottom pressure ensures that divers receive adequate breathing gas at the required density and pressure during their operations underwater.

In surface-supplied diving systems, the overbottom pressure is necessary to counteract the hydrostatic pressure experienced at depth. It ensures that the diver can breathe comfortably and prevents complications such as barotrauma or hypoxia. The 90 PSIG threshold reflects industry standards for operational safety while allowing for sufficient breathing gas supply under different environmental conditions.

By adhering to this minimum pressure requirement, diving operations can maintain safety and efficiency, providing a reliable system for divers performing their tasks at various depths.