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sandalsclub

Tying ropes together?

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Hi, I'm info gathering so thanks in advance.

 

Does anybody use an accessory pull-cord for full length raps on one strand?

 

What knots do you like?

 

Is an EDK appropriate when pairing diameters of 6mm and 10mm?

 

Any experiences with a knot pulling through itself or through the anchor?

Edited by sandalsclub

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After staying up all night reading, it seems to me the best low-profile system is a biner-block using a clove hitch and an EDK.

 

Unfortunately it also seems that the sanest way to secure the single rap line incorporates a snag-loving carabiner :(

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So, descend on two. Add a second biner to the belay device for greater friction on the smaller cord only...

Edited by sandalsclub

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When using 7mm or 8mm tag line, yes - descend on two as you normally would. With the lead rope through the chains/rings.

 

I don't use any extra biners for added friction. If I feel like I need more friction, an extra wrap with my autoblock usually does the trick.

 

 

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See below pic of pull-line system in use, I use this method with a 6mm cord. Note the biner is REALLY important, people have died by using just a knot and no biner. This method isn't prefect as discussed, but I've been happy with it and only had a few stuck ropes that required some extra pulling.

 

[img:center]http://4.bp.blogspot.com/_CVi31V8pFQE/S-nNArY-xCI/AAAAAAAAAMI/p1-uqDgNHHQ/s1600/448px-Autoblock_lockeds.JPG[/img]

 

 

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Lookz like Eldiente ties a square knot, and then the Fishermans. Thats what I do. Probably from being drilled into my in Boy Scouts that a square knot is the best way to join 2 ropes, and also because you can whip a square knot in so that they are quickly joined and then its easy to tie the fishermans(as a backup and to hold the sq knot in place) because they are not under any tension.

 

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I'm paranoid so I use a small locker on the rig. As for the knot, the above picture was stole from some random website, this isn't my picture. The only thing I do differently is I use a overhand knot to join the pull line and the lead rope together, the tag line is not supposed to be load bearing so I use whatever knot is small and easy to tie for the tag line. My feeling is that there is no conceivable way for a locker to fit through a rap ring, safe enough.

Edited by eldiente

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Thanks again for all the input. I realize there is already a good amount of info out there. It seems there are definitely multiple options for descent.

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