- Water knot
Knot-details
name=Water knot
names= Tape knot, Ring bend, Grass knot, Overhand follow through
type= bend
strength=
origin=
related=Overhand knot ,Beer knot ,Overhand bend
releasing=
strength=
uses= To join webbing for climbing
caveat= Ends should be left long, knot should be tightened and inspected before each use. Difficult to untie.
abok_number= #296The water knot (also tape knot, grass knot, or overhand follow-through) is a
knot frequently used inclimbing for joining two ends ofwebbing together, for instance when making a sling.Tying the water knot
To tie, first form an
overhand knot in one end and then follow it with the other end, feeding in the opposite direction.The ends should be left at least convert|3|in|cm long and the knot should be "set" by tightening it with full body weight. The ends can be taped or lightly sewn to the standing parts to help prevent them from creeping back into the knot. Inspect the knot before each use.Craig Luebben, "Knots for Climbers" (Evergreen, Colorado: Chockstone Press, 1993), 19.]
ecurity
Testing has shown the water knot to slip very slightly, but very consistently, with each load and unload cycle. In tests using 9/16 in (14.3 mm) tubular webbing, repeated loading and unloading with 250 lbs (113 kg) caused one of the 3 in (76 mm) tails to work back into the knot in just over 800 loading cycles. When the water knot was statically loaded with 200 lbs (91 kg) no slipping was observed. These results validate the need to leave long tails and inspect water knots before each use.Tom Moyer, "Water Knot Testing", 1999 International Technical Rescue Symposium, 1999. ( [http://www.xmission.com/%7etmoyer/testing/Water_Knot_Testing.pdf] accessed
2007-04-07 .)]References
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