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Venturi Adjustment on Scuba Regulators (Dive/Pre-Dive, Off-On, and +/- Switch)
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日期：2025-09-13
The Dive/Pre-Dive, Off/On, or +/- adjustment on a scuba regulator is a "Venturi Switch". This lever or knob on a regulator second stage allows a diver to alter air flow so that the regulator breathes easily. Here's how it works....看更多
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