Gary's Rec & Tech Diving

IANTD - Recreational Trimix

The IANTD Recreational Trimix course is designed to provide Sport Divers with a helium mixture for extending their dives in Sport diving depths by using Trimix. The programme covers the use of recreational trimix in the range of 28 to 40% oxygen with a Helium content to provide an END no greater than 24msw - effectively reducing the level of narcosis a diver experiences during a typical dive. Divers are qualified to make no-stop dives using Recreational Trimix mixtures to a depth of 30msw or deeper depending upon the students previous qualification level.

The recreational trimix course may be undertaken in standard equipment and does not require the use of a twinset.

The following skills are taught

1. The ability to plan Recreational Trimix dives, enhancing buoyancy control and proficiency in bidy posture underwater for a more streamlined diver profile

2. Configuration of equipment to increase efficiency

3. A gas sharing drill utilising an alternate second stage, while having the out of gas diver swim 12 m to the donor without breathing

4. Perform one gas sharing drill on ascent

Course Requirements

1.Must be a qualified Advanced Open Water diver or equivalent and an EANx Diver

2. Must provide proof of minimum of 15 dives

3. Must be a minimum of 15 years of age with a parent or guardian authorization or a minimum of 18 years of age without guardian approval

Equipment Requirements

  • Single Cylinder and Regulator - 02 clean
  • BCD or Wing
  • Alternate air source - minimum 3 ltr
  • DSMB and Reel/spool
  • Appropriate exposure protection
  • Normal diving equipment
  • Bottom timer or computer capable of gauge mode