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Equalization is one of the biggest barriers for beginners when it comes to going deeper in freediving. Even if you are already a scuba diver or avid snorkeler and have no problem equalizing while you dive, equalization for freediving is very different! One of the reasons for this difference is that freedivers must use the Frenzel maneuver to go deeper, while many scuba divers and snorkelers can get by on their dives using the Valsalva maneuver. But do you know the differences between Frenzel and Valsalva equalization?
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