Why your equalization stops working

You are equalizing too late

Once pressure has already built strongly across the eardrum, equalization often becomes harder. Frequent, early equalization is usually easier than trying to recover after falling behind.

You lose Frenzel upside down

Many divers can Frenzel sitting upright but lose the movement during a head-down descent. That often means the technique is not yet isolated from chest pressure or the diver is changing soft-palate/glottis coordination under load.

You are descending faster than your technique

A fast descent can turn a small coordination problem into a hard stop. Slowing down gives you time to equalize early and notice exactly where the movement begins to fail.

Congestion or inflammation

A cold, allergies or irritated Eustachian tubes can make otherwise good technique unreliable. Technique cannot always overcome anatomy on a bad day.

Tension is stealing precision

Jaw, neck and tongue tension often increases when a diver expects trouble. That can make the exact movements needed for Frenzel less precise.

When coaching helps most

If you repeatedly fail at the same depth, a skilled instructor can often identify whether the issue is timing, pressure source, head position, soft-palate control or a transition toward deeper equalization.

Learn with an instructor

Educational articles can help you understand the concepts, but equalization and safety skills should be developed progressively with direct feedback in an appropriate training environment.