Low Gas Supply Pressure, Surface
In an emergency the surface supply can be used until the gas supply pressure has dropped to approximately 20 bar. In case of low gas pressure from surface, see next section.
Note: Warning! The diving hose should never be re-pressurized during the dive if the pressure in the hose has been lower than 10 bar. Water may enter into the diving hose when depressurized and submerged, as stated earlier!