Why Your BCD Won’t Deflate (And What a Turtle Has to Do with It)
Look at this turtle.
It’s not swimming straight up.
It’s heading toward the surface — but at an angle.
And that small detail explains one of the most common problems divers face:
“My BCD won’t deflate.”
It’s Not Your Gear — It’s Your Position
You’re ascending. Everything feels fine.
Then suddenly you start rising faster than planned.
You press the deflate button… and nothing happens.
No bubbles.
No change.
Just that slow upward drift.
As you get shallower, the air inside your BCD expands. That’s normal physics. But here’s what many divers forget:
Air always moves to the highest point.
If you’re angled — like that turtle — the air inside your BCD isn’t sitting near your inflator hose. So when you try to release it, nothing comes out.
The issue isn’t the BCD.
It’s body position.
How to Fix It Underwater
Next time your BCD won’t deflate:
- Lean back slightly
- Go fully vertical
- Lift your inflator so it becomes the highest point
- Press deflate again
- Look for bubbles
If you don’t see bubbles, you’re still not vertical enough. Adjust and repeat.
A small change in position can completely change your control.
Why This Matters for Advanced Divers
This is exactly the kind of skill that separates beginner buoyancy from confident, relaxed diving.
During the Advanced Open Water course, divers refine buoyancy control, body positioning, and ascent management in real dive conditions — including current and depth changes.
It’s not about adding more air or dumping more air.
It’s about understanding how your position affects everything.
👉 Improve your buoyancy and ascent control with our Advanced Open Water course in Bali
Small Adjustment, Big Difference
Most underwater “equipment problems” are actually technique problems.
Next time your BCD won’t deflate, think of the turtle.
It wasn’t vertical — and maybe you weren’t either.