Webbing is impressively powerful synthetic fibre used in rock climbing, parachuting, furniture packing, and automobile racing. However, due it its smooth texture, it can be difficult to join two ends of webbing together with a knot that won't slip during strain. In some situations, especially rock climbing, it is imperative that the knot holds in the event of a fall. The water knot is relatively simple to perform and will prevent your webbing from slipping when you need it to hold.
Place the last 12 inches of your first line of webbing on your work surface. Position the line so it rests flat without any twists.
Twist the end of the line around on itself to create a loop, and thread the tip through. You just created a simple overhand knot. Do not pull the knot tight just yet. You should have approximately 6 inches of webbing extending past the knot.
Place the last 12 inches of your second length of webbing on your work surface. It should be running the opposite direction as the first.
Take the tip of your second length of webbing and run it along the overhand knot of the first length. It should run along the exact same path, only in the opposite direction. It should run without any twists, resting atop the first length of webbing.
Slowly tighten your knot, ensuring that plenty of webbing from both lines extends past the knot.
With practice, you will learn how much webbing to use to ensure that a minimum of 2 inches of webbing extends past the knot.
Have your knot looked at by an experienced user before testing your weight on it.