Join Date: Jun 2004
Location: West Michigan
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My self, I feel that breaking it up would make repair/replacement easier in case of a break.
Prussic knot should work to keep it from slipping around, and still allow adjustment.
Easy way would be to zig-zag it between the life lines a couple times with comfortable spacing, and use short lengths to tie the crossings, then tie at the life lines. other wise you could tie crossings as you make them using the working line, but you give up easy(?) adjustment
Unless the kids are going to be in sight constantly, keep the spacing pretty tight, wider spacing could allow smaller people/arms/legs/heads to slip between strands that could cause serious injury.
Watch tension, so you don't bow your life lines towards each other.
Done carefully it can look pretty nice
Brick layers twine has a 100 pound working load, is pretty cheap (99 cents/100ft at local hardware, cheaper in larger lengths) is treated to hold up under sunlight, and comes in a few different colors ( not actually for decor, but to avoid confusion on job sites where there are several crews. I'd go with white, because the color does fade after a while in the sun.
can get braided or twisted