Scuba Buddy Check: What to Review Before Every Dive

Use a consistent pre-dive buddy check to catch common setup problems before entering the water and confirm your shared dive plan.

Why pre-dive checks matter
Many equipment problems are much easier to identify on land or on the boat than underwater. A deliberate buddy check helps confirm that essential equipment is assembled and functioning, while also giving partners a chance to review what to do if plans change. Experienced divers need checks too, especially when using rental or unfamiliar equipment.

Follow the sequence from your training
Different training organizations teach different memory aids, and equipment configurations vary. Use the established method taught in your certification course or by your instructor. The objective is to inspect critical functions systematically, not to rush through a memorized phrase without looking at the gear.

Review BCD and breathing equipment
Confirm that the BCD inflates and deflates, that cylinders are secured and that the breathing system is configured and functioning as trained. Check hoses for obvious problems, verify the cylinder valve and available gas in the manner appropriate to your system, and make sure each diver can identify and access the other’s alternate gas source.

Confirm weights and releases
Each diver should know how the other’s weights are secured and how to release them when appropriate. Check that harness buckles and other fasteners are secure but accessible. Avoid casually changing an unfamiliar diver’s gear. Ask for a demonstration if you do not understand a release mechanism.

Check mask, fins and accessories
Look for loose or dangling equipment that could snag or interfere with movement. Review the location of critical accessories, especially surface signaling devices and cutting tools when carried. Equipment should be secured without preventing needed access.

Review the shared plan
Agree on entry and exit, maximum depth, intended route, gas limits, communication signals, lost-buddy procedures and conditions that will end the dive. Each buddy needs to understand the plan and be able to communicate discomfort or an early abort.

Do not let a routine become automatic
If a check reveals an unexplained problem, stop and resolve it before entering. A pre-dive check reduces risk but does not guarantee equipment will never fail. During the dive, continue monitoring gas, depth, conditions and your buddy.