From the blog

The Dive Kit Blog

Long-form, carefully-cited articles on the science of diving, written to teach rather than to sell.

Decompression September 28, 2026 18 min read

Same Dive, Different Stops: Why Your Plan and Your Buddy's Don't Match

Two careful divers plan the same 45 m dive and reach the surface 12 minutes apart, and neither plan is wrong. This article explains why: how two ZHL-16C planners can disagree, which conventions differ between them, which settings move a schedule and by how much, and what to compare before the dive.

Read article
Decompression August 13, 2026 13 min read

What Is Decompression, and Why Do Divers Plan for It?

Every rule you learned about coming up, the slow ascent, the safety stop, the no-deco limit, protects you from one problem you cannot feel. This is the intuition behind decompression, a short history of how divers learned to manage it, and an honest map of where to learn more.

Read article
Gas planning June 10, 2026 11 min read

SAC, RMV, and SRMV: What Your Breathing Rate Is Actually Called

Ask three divers what SAC and RMV mean and you get four answers, half of them wrong on the units. This sorts out the terms from the medical definition up, shows the maths, and explains why Dive Kit standardised on SRMV.

Read article
Gas planning June 10, 2026 11 min read

What “AL80” Actually Means: Cylinder Capacity, Explained

An AL80 does not hold 80 cubic feet of gas. This is the plain-English guide to how cylinders are sized and named: water capacity versus free-gas capacity, the maths, and why real gas makes the number on the sticker a small lie.

Read article
Decompression June 3, 2026 17 min read

Unpacking Gradient Factors

Two numbers on your dive computer decide how you ascend. They were introduced in the late 1990s, and recent evidence reshaped what 'conservative' means. No one can hand you the 'right' setting, so the goal is to understand the trade-off and choose your own.

Read article

Get Dive Kit

Eleven tools free. Deco Planner: free trial, then $4.99/month or $24.99 lifetime.

Download on the App StoreGet it on Google Play