Depth Gauges, DSMBs, Lift Bags, Rebreathers & More Explained — PADI IDC Equipment Theory

Depth gauges, exposure suits, DSMBs, lift bags, alternate air source inflators, dive computers, and rebreathers — all the equipment theory questions that regularly catch candidates out in the PADI IDC and Divemaster exams. Covered in this video: Capillary depth gauges — how they work, why they are the most examined gauge type Capillary gauges at altitude — why they display theoretical depth and no conversion is needed Oil-filled, diaphragm, and electronic depth gauges Wet suit insulation — what actually keeps you warm Dry suit argon inflation — why technical divers use argon instead of air or trimix Dry suit seal replacement and trimming Open-bottom SMBs, sealed SMBs, and DSMBs — design differences and when to use each DSMB safety — using a reel and never attaching to your BCD Lift bag weight limits (7 kg / 45 kg) and correct technique Alternate air source inflators — why the donor gives away the primary, not the inflator Air-integrated dive computers and the gas time remaining display Nitrox and multi-gas computers — oxygen tracking and OTUs Closed-circuit rebreathers — counter lungs, buoyancy control, and the set point Timestamps: 0:00 Depth gauges overview 0:40 Capillary depth gauge — how it works 4:30 Oil-filled, diaphragm, and electronic gauges 5:48 Capillary gauges at altitude — theoretical depth 8:53 Wet suits — air bubbles and insulation 9:55 Dry suits — argon inflation gas 11:30 Dry suit seals and trimming 12:00 SMBs and DSMBs — three types compared 14:38 Lift bags — weight limits and technique 16:22 Alternate air source inflators 17:28 Dive computers — air integration and nitrox 18:59 Closed-circuit rebreathers — buoyancy and set point Full study notes for this topic: https://goprocaribbean.com/dive-compu... All Equipment topics: https://goprocaribbean.com/divetheory Go Pro Caribbean — PADI Platinum Course Director Will Welbourn Roatan, Honduras | 500+ instructors certified since 2008 Monthly PADI IDC courses year-round https://goprocaribbean.com