Genesis Manual Rev2.0 Copyright 2020, Nellis Engineering, Inc.
9
Trimming
The DPV should be trimmed with weight inside so as to have the proper buoyancy characteristics
in the water. Typically, DPVs are trimmed neutral to slightly positive when diving in open water
and neutral when diving in an overhead environment. The amount of weight needed inside will
change noticeably from saltwater to fresh water and slightly from warm to cold water. Two
weight pouches with lead shot are included. Adding items to the DPV like a compass, camera
mount or bolt-snap on the nose will affect the trim, so ensure it is configured with all accessories
before trimming.
Operation
A DPV training course is recommended for anyone without experience operating a DPV. The
operation section of the manual in not a substitute for proper training and does not address the
numerous hazards and issues you may encounter while operating any DPV.
Once in the water, attach the DPV tow cord to your crotch strap D-ring and adjust the length to a
comfortable, but not over extended reach length. Do not attempt to operate the DPV without it
being securely attached to a proper towing attachment point on your harness. Do not lend it to
another diver without a proper towing attachment point on their harness. When starting out, it is
easiest to start with the tow cord adjusted shorter than necessary and gradually lengthen it,
instead of starting with the tow cord adjusted too long. The tow cord length is adjusted via a taut-
line hitch which locks up under tension, but can be adjusted by hand when not. (Figure 7)
When you are ready to dive, submerge and
make yourself neutrally buoyant before
rotating the trigger lock tab 180° out of the
way (Figure 8). Adjust the speed lever to a
middle position and squeeze the trigger
completely. The DPV has a soft start on the
motor to prevent it from jerking you when
you squeeze the trigger. The speed lever
can be adjusted at anytime, before or after
squeezing the trigger. The tab used to lock
the trigger in the OFF position can also be
used to lock the trigger in the ON position
(Figure 9) for extended cruising. It is
recommended that you do not use the
locking tab to keep the trigger ON until you
have gained ample experience with the DPV
and then only use it when your hand is on
the handle. Rotate the locking tab out of
the way of the trigger when transitioning
into a restrictive area or area congested
Figure 8 - Lock tab 180° from trigger
