DSAT Tec 40


This course takes you past recreational diving and immerses you in the world of technical diving.

If you’re interested in technical diving, but haven’t yet met the prerequisites for the DSAT Tec 45 Diver course, you can consider enrolling in the DSAT Tec 40 course. It is the first subdivision of the full DSAT Tec Deep Diver course and consists of the first four dives. The course can be done using side mount if required.


You will learn about equipment rigging, gas planning, team diving, technical hand signals, gas shut down drills, gas switching, long hose gas sharing, lift bag deployment, use of deco cylinders, equipment and gas failure procedures, diver emergencies and rescue drills, oxygen management, deco computer software, executing deco stops.

After successful completion of the course you’ll be able to conduct gas-switch extended no-deco dives, and deco dives using enriched air (up to 50%), to add conservatism, to a depth of 40m.

Pre requisites

Age 18+, Advanced Open Water (or equivalent), Enriched Air Diver, Deep Diver, Dry Suit Diver, 50 logged dives.


regulators, wings, cylinders

Not included

Transport and entry fee to site. £16 per day, manual, gas fills , dive site entrance.

We run this course to order so please contact us directly for dates.

Cost: £400.00
Duration: 3 days / 4 dives
Location: Chepstow


We run this course to order.  Please contact us directly for further details.

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