Surface markers can be utilized in the event of an emergency; they may also be deployed as a means to maintain communication with a dive boat or surface personnel. The Halcyon series of inflatable devices includes a range of surface-signaling and life support devices.
Photo: Joan Barcia
Divers seeking a nearly foolproof means to deploy a surface marker from depth may be interested in using a Halcyon spool. The Halcyon spool has no moving parts, reducing complexity and eliminating any risk of a jammed reel. To deploy the surface marker, slip the looped end of the line through the eye of the stainless steel bolt snap at the bottom of the marker, passing the spool through the loop and securing it to the marker. A final charge of gas appropriate to the depth of release is added and the marker is released. The spool will turn freely as the marker rises to the surface. Should one lose control of the spool, the specially weighted Halcyon spool will sink slowly from the surface, providing the diver an opportunity to recover the line.
Cold-water tip: Cold-water divers or those who prefer a handle will appreciate the easy operation of the Halcyon Cold-water Spool. This spool allows divers to create a convenient handle, improving efficiency and ease of operation.