The Pre-Dive Buddy Check Most Scuba Divers Skip

The Five-Minute Check That Could Save Your Life

Half of all scuba accidents could be prevented by something that takes less than five minutes. That's not a guess. Divers Alert Network analyzed years of incident reports and found that a proper pre-dive buddy check would have caught the problem before anyone hit the water. Yet on dive boats around the world, you'll see the same thing: a quick "you good?", a thumbs-up, and a giant stride into trouble.

BWRAF — Buoyancy, Weights, Releases, Air, Final check — is the five-step ritual every certified diver learns on day one. It is also the first thing most divers stop doing once they feel comfortable. This guide is a hard look at why that's a bad idea, and what a real buddy check looks like when you do it right.

What BWRAF Actually Stands For

BWRAF is a memory aid for the five things that are most likely to kill you if they go wrong: a BCD that won't inflate, weights that fall off mid-dive, a release you can't find in an emergency, a tank valve that's closed, and loose gear you missed on the deck. Each letter is a system check, not a vibe check.

• B — Buoyancy (BCD): Inflate fully, then dump from every valve — power inflator, shoulder, lower back, overpressure. Each one should hiss steadily without a leak.
• W — Weights: Tug every weight pocket and belt. They should not shift. Confirm the release mechanism is the same on both sides and that your buddy knows where it is.
• R — Releases: Tank strap, shoulder buckles, chest clip, waist strap. Point to each one. If your buddy ever has to ditch your gear, they need to know the layout before there's a problem.
• A — Air: Tank valve fully open. Breathe four or five deep breaths off your primary while watching the SPG. The needle should not twitch. Then breathe off the octopus the same way.
• F — Final check: Mask, fins, computer in dive mode, SMB packed, hoses tucked, no dangling clips. Look at each other head to toe.

Why Smart Divers Skip It

The most dangerous moment in your diving career is the dive after you start feeling experienced. You've done a hundred dives. You set up your gear yourself. You trust your kit. So you skip the check, or you reduce it to a fist bump and a "all good?" — and that's exactly when the closed valve gets you.

Three things make experienced divers cut corners. Excitement to get in the water. Embarrassment about looking like a beginner in front of a stranger. And the quiet assumption that nothing has changed since the last dive. All three are wrong, and all three have killed people. Tanks get partially closed during transport. Dive shops swap out regulators between dives. Weight pockets work loose on the boat ride. Your gear is not the same gear it was an hour ago.

The Closed Valve Problem

This one deserves its own section because it keeps killing people. A diver checks that the air is on, the regulator breathes fine on the surface, and they descend. At depth, the partially-closed valve can't deliver enough air, the diver can't catch their breath, panics, bolts for the surface, and arrives with an arterial gas embolism.

The fix is brutally simple: open the valve all the way, then breathe deeply off both regulators while watching the pressure gauge for two full breaths. If the needle moves at all, the valve is not fully open. This is the single most important check in BWRAF and the one most often done wrong.

How to Run the Check Without Looking Awkward

The reason most experienced divers stop doing buddy checks is social. They feel weird asking a stranger on a liveaboard to inspect their gear. The trick is to make it routine and to lead. Don't ask if your buddy wants to do a check — just start. "Hey, mind if I run BWRAF before we go?" Nobody refuses. Most are relieved.

Take two minutes. Talk through each letter out loud — "B, your inflator works, dumps work" — so you're not just touching things at random. Then have them do you. The whole exchange is shorter than the safety briefing you just sat through, and after the first time it stops feeling weird forever.

Buddy Checks on Liveaboards and Group Dives

Liveaboards are where buddy checks die fastest. You're tired, you've done four dives already, you trust the crew, and you want to get to the wreck. This is exactly when you should be doing the most thorough check, not the least. Tanks are switched between every dive. On a busy boat, your tank may have been moved, refilled, or partially turned off by accident.

If you're diving with a guide rather than a true buddy, do the check with whoever is geared up next to you. Most dive guides in Thailand, Indonesia, and the Maldives expect this and will do it back. If a guide brushes you off when you ask, that's a red flag about the operation, not about you being annoying.

When the Check Catches Something

The whole point of BWRAF is the small percentage of dives where you actually find a problem. A loose weight pocket. A free-flowing octopus. A computer in gauge mode instead of dive mode. A tank with 150 bar instead of the 220 you assumed. Each of these is a non-event when you find it on the deck and a serious incident when you find it at 25 meters.

Treat finding something as a win, not an embarrassment. The diver who catches a problem during BWRAF is the diver who didn't make it into a DAN report. That's the entire job.

Make It a Habit, Not a Decision

The divers who never skip buddy checks are not more disciplined than you. They've just stopped deciding. The check happens automatically the moment they finish gearing up, the same way you put your seatbelt on without thinking about whether the drive is short. Five minutes, every dive, no exceptions, no negotiation. After about twenty dives of forcing it, your hands start doing it on their own.

If you're booking dives in Thailand and want operators who actually run buddy checks the way they're supposed to, browse vetted dive shops and liveaboards on siamdive.com. The best operators welcome a thorough check. The ones who don't are telling you something.