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M-Values – Decompression Theory

A video lesson. M-values refer to the maximum nitrogen loading of compartments. Different models use different M-values. Computer models use conservative M-values. Fast compartments and high M-values, slow compartments and low M-values. The controlling compartment.

Thanks to Easy Dive Theory for making this video

Half Times – Decompression Theory

Halftimes. Different tissues in the body on and off-gas at different rates. Find out how halftimes relate to this. Exponential nitrogen filling of tissues: half times. Fast and slow tissues.

Thanks to Easy Dive Theory for making this video

Compartments – Decompression Theory

Compartments. Take the next step in decompression theory learning about  what a compartment is and how it related to diving. Compartments and theoretical tissues. Different decompression models The nitrogen loading of a compartment in pressure in metres of seawater.

Thanks to Easy Dive Theory for making this video

Steel vs Aluminium Tanks

Find out the differences of steel vs aluminium tanks. What are the structural and weight differences in steel vs aluminium tanks? What are the different dive qualities and buoyancy factors in steel vs aluminium tanks? Let’s explore

Thank you to Divemaster Austin for this informative video

How a Cylinder Visual Inspection is Performed

A cylinder visual inspection needs to be carried out annually. Or according to local guidelines to ensure the cylinder is in working order. Watch the components of the visual inspection. While less thorough than the hydrostatic test, it can detect issues with the cylinder.

Thank you to Scuba Tech Key Largo for making this informative video

Scuba Diving Gauges

Scuba diving gauges allow a divers to check how much air they have in a tank. Scuba diving gauges come in various analog and digital forms but what allows them to show the pressure inside a tank or the depth?

Thanks to Easy Dive Theory for making this video

Lift Bag Use

Lift bag use is important when you wish to bring up an object heavier than 7kg. Learning how you rig and fill is the key part of lift bag use and then safely surfacing with the object. This video demonstrates how to brief and teach in-water the use of a lift bag. This is a skill from the Search and Recovery adventure dive.

Thanks so much to our colleagues at PADI IDC Roatan for making this excellent video.

Cold Water Regulators

Cold water regulators are regulators that have a few extra features on them that allow them to be safely used in much colder water. Cold water regulators need to be protected against freezing and other harsh environmental factors. Explore more

Thank you to Simply Scuba for making this video

How do Burst Discs Work?

Burst discs prevent tanks from being overfilled and causing serious accidents. Divers learn tank filling safety but what prevents a tank from overfilling? Discover how a small metal burst disc prevents tanks from exceeding maximum pressure.

Thank you Alec Peirce Scuba for this amazingly informative video

Scuba Regulators

Find out about the function of scuba regulators and how they work. Explore the features of scuba regulators including: The first stage and the second stage. Balanced and unbalanced. Environmental seals. Failsafe designs, upstream and downstream. The Venturi system.

Thanks to Easy Dive Theory for making this video

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