Assertion: diver | /r/CapableOf | switch to open circuit
Facets:
value: manually
type: MANNER
Source sentences:
text: A diverter valve is provided to allow the diver to manually switch to open circuit if the reclaim valve malfunctions, and an underpressure flood valve allows water to enter the helmet to avoid a squeeze if the reclaim valve fails suddenly, allowing the diver time to switch to open circuit without injury.:151–155 Reclaim valves for deep diving may use two stages to give smoother flow and lower work of breathing.