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We've been using flexible Platypus reservoirs and have had no trouble thus far. I have knitted an insulation tube (six-stitch I-cord in a sport weight wool) that runs the entire length of the drin...
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We've been using flexible Platypus reservoirs and have had no trouble thus far. I have knitted an insulation tube (six-stitch I-cord in a sport weight wool) that runs the entire length of the drin...