Hook the caribiner clip to the lane line hardware.
Unscrew the reel fastener, then swim or walk to the opposite end of the pool while holding the reel, letting it unwind.
The figure 9 carabiner will secure the line at the opposite end of the pool. Follow the diagram to lock the line in place.
Trouble getting the line tight? Try wrapping the line into the figure 9 (about a foot away from the wall) then stretching it to hook into the lane-line hardware.
Once the figure 9 is in place, the reel can go on the pool deck, out of the way.
Connect the leash to the shuttle handle.
The leash swivel clip connects to the d-ring on the belt.
Adjust tension by turning the screw top of the shuttle. (Clockwise for more resistance, counter-clockwise for less.)