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Cave break tests - 40 year old Pit Rope vs New!

We test zepplin vs modified zepplin knots. We test 40 year old pit rope with new pit rope. And we test soft shackles as lightweight anchor connectors.

John Fioroni from Cave Exploration sent us some zeplin knots to test and the soft shackles. Get 5% off at if you use the discount code HOWNOT2. (using code also helps out the channel)

Ethan and Ian Reuter sent the Pit Rope. See Ethan's Instagram!

Spoiler alert, both zeplin knots are bomber, 40 year old rope broke at 50% of the new rope, and only 6mm soft shackles are big enough to use as connectors if the hanger has a rounded edge!

Bonier Dupla Hangers

Bonier Pingo Hangers

Vintage Cave rope break test:

Learn Caving from Derek's resources....


Walter Seibert has done studies about UV light and safety gear. His channel is at

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Breaking Gear Fear

Edutainment has been a great way to help people understand their gear, and know the true limitations of it.  Watching HOW gear fails is more important than the force itself, as almost all gear is super good enough.  It's more important to share information on how to stay safe than it is to have a paywall.  We hope our stoke is contagious.

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