Assertion: open water diver | /r/CapableOf | shut off valve
Facets:
value: at each second stage regulator
type: LOCATION
Source sentences:
text: Some cold water scuba divers install shuttle type shut off valves at each second stage regulator so if the second stage freezes open, the low pressure air can be shut off to the frozen second stage allowing them to switch to the alternative second stage and abort the dive.