“double tanks - double fun”

Venturing into more advanced underwater environments is very often related to longer times and greater depths. To be able to safely extend both, divers need to increase their available breathing gas volume and add equipment redundancy.

The GUE Doubles Primer is a non-certification course designed to teach divers how to safely and comfortably dive a double tank configuration using proper equipment and techniques.


The Doubles Primer is normally conducted over one day. It requires a minimum of two dives and at least eight hours of instruction, encompassing classroom lectures, land drills, and in-water work.

During this training you acquire knowledge and skills in the following areas:

  • familiarity with the theory and utilization of double tank configuration,
  • GUE equipment configuration,
  • buoyancy and trim practice,
  • basic valve management,
  • skill refinement.

Anyone interested in making the transition from single tank to doubles will benefit from this class. It is highly recommended to anyone who is intending to take GUE Fundamentals class and who has no previous experience with twinsets.

This training is available for non-GUE trained divers and can serve as a basic introduction to GUE systems.

Need more details? Download and read GUE Standards.

Total cost depends on where the training takes place.
Standard price of GUE Double Primer is:

  • 200 € training fee,
  • 45 $ registration fee (including study materials),
  • Diving and travel expenses.