Sidemount- Principles For Success Updated Jun 2026

Sidemount diving has evolved from a niche cave diving technique into one of the most popular configurations for technical and recreational divers alike. While the gear looks sleek, achieving true proficiency requires mastering specific fundamentals.

Tanks should run parallel to your torso, not "butt-heavy" or floating up. Streamlining and Equipment Management

Recreational backplate divers love their continuous webbing—one piece, no padding, minimalist. In sidemount, you cannot simply thread the same rigid straps sideways. The human torso is conical, and your shoulder blades move. A poorly fitted sidemount harness will rotate tanks into your armpits, pinch your neck, and cause lower back pain.

I can provide specific rigging adjustments tailored exactly to your equipment. Share public link Sidemount- Principles For Success

When you master these principles, sidemount ceases to be a configuration and becomes an extension of your body. You will glide through restrictions with millimeters to spare, manage complex gas switches without stress, and surface with air to spare. That is the ultimate success.

Strip your rig to the bare essentials (wing, harness, backplate). Perform a weight check. Adjust your ballast so you can hold a 10-foot stop with an empty wing. should you clip on your sidemount cylinders.

When you look down from above, your tanks should not protrude beyond the silhouette of your body. When viewed from the side, they should not break above your shoulder or below your hip. This “hugged” position reduces drag and makes the system hydrodynamically efficient. Sidemount diving has evolved from a niche cave

You stop thinking about "left tank, right tank" and start thinking about "the reef, the wreck, the wall."

: Strictly following gas management rules (e.g., the "Rule of Thirds") and switching regulators regularly to keep gas balanced across both tanks. Valve Management

Proper hose routing is essential for comfort and safety, specifically for managing the "long hose" in emergency situations. A poorly fitted sidemount harness will rotate tanks

Your tank valves are the most exposed part of your rig. Every time you clip a tank on the surface, you are one drop away from cracking a neck O-ring. The principle here is . Pause for one second before applying tension to the bolt snap. Ensure the line isn't twisted. A twisted bungee will unclip itself at 80 feet—a terrifying experience.

Frequent switching keeps both regulators wet and operational while keeping your physical balance centered. 5. Valve Management and Accessibility

In backmount, the tank is fixed. In sidemount, the tank is a lever. And levers cause rotation.

To succeed, you must treat gas switching like a religion. The gold standard is the . Every time the active regulator’s pressure drops by 200 PSI, you switch.