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Todd Leonard <toddl@in*.co*> writes: > What was the failure mode for the overpressure relief valve? It's > such a simple device... hard to believe it would fail if properly > maintained. Frozen before the dive? Damaged before the dive? > Cranked down too far so it couldn't open freely? Another failure mode is that the two bladders can get twisted together in the narrow part behind the neck. I wasn't there to see it, but apparently it happened to a fellow in a cave and he had to swim out in a nonhorizontal attitude because only one side would inflate. If the overpressure were on the opposite side than the inflator (no idea, since DiveRite made my wings and they put everything on the left), that sort of thing could keep air from venting. When I took my cave course, bondage wings were the one and only piece of gear nobody was going to be allowed in the water wearing; the instructors lent single wings to the students who had been shopping at OMS dealers. -- Anthony DeBoer <adb@on*.ca*> -- Send mail for the `techdiver' mailing list to `techdiver@aquanaut.com'. Send subscribe/unsubscribe requests to `techdiver-request@aquanaut.com'.
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