Sidemount

What to know about sidemount scuba diving

Frequently asked questions

Do I need special training to dive sidemount?

Yes — sidemount configuration is significantly different from back-mounted diving and requires proper instruction. Tank mounting, buoyancy adjustment with two separate bladders (the BCD bladder plus drysuit if applicable), gas management between two cylinders, and regulator routing all need to be learned correctly. Most training agencies offer a Sidemount Diver specialty course. Attempting sidemount without training risks poor trim, equipment entanglement, and gas management errors. If you are interested in sidemount diving, contact us at The Dive Outfitters about sidemount training options.

What tanks are used for sidemount diving?

Sidemount divers typically use two smaller cylinders — most commonly aluminum 80s (AL80) or steel 85s — one on each side. The tanks must have a bottom bolt snap attachment point, either a tank boot with a D-ring or a wrap-around bungee and clip. Standard back-mounted tanks can often be adapted for sidemount use with the correct rigging. Using matched tanks (same size and material on each side) simplifies trim and gas management. Your instructor will cover tank selection and rigging as part of sidemount training.

What is the difference between sidemount and a wing and backplate?

Both are modular systems used by technical and advanced recreational divers, but they differ fundamentally in how tanks are carried. A wing and backplate mounts the tank on your back — the same position as any back-mounted BCD. A sidemount system mounts tanks alongside your body at hip level. The wing and backplate is the more common choice for recreational and most technical diving; sidemount is chosen when the diving environment requires a narrower profile (cave or wreck restrictions), when the diver prefers the ergonomic benefits of side-mounted tanks, or when two tanks of gas redundancy are desired without the complexity of a doubles manifold setup.

Can I convert my existing wing and backplate to sidemount?

Not directly — sidemount requires a purpose-built sidemount harness and bladder, not a standard wing and backplate. The tank attachment points, D-ring placements, and bladder shape are all specific to sidemount. However, some components such as backplates and webbing may be compatible with sidemount-specific wings and harnesses depending on the brand. If you are already diving a Scuba Force system, some components are compatible across their sidemount and back-mounted product lines. Contact us to discuss your existing setup and whether a sidemount conversion or a fresh sidemount system makes more sense for your situation More often, you can re-configure your regulator set for sidemount diving with a few changes.