4.4K views · 34 reactions | Check out this video from Petzl for a simple explanation of how the right equipment can raise the pulley efficiency for easier lifting. Understanding pulley efficiency is an essential part of any rescue situation. Calculating the strength needed to lift and lower objects can make the rescue safer for you and the person you are rescuing. Shop the Petzl SPIN L1 Pulley  https://loom.ly/bDfTMbg  Petzl #RescueDirect #RescueEquipment | Rescue Direct | Facebook

#PetzlTips - An easy solution to tension a rope Whether it is for a lifeline or tyrolean installation, here a solution to tension a rope easily. 3:1 pulley system is sufficient in most cases. By using a directional SPIN L1, you can easily tension the rope under your own weight. Don’t forget a stopper knot to avoid accidental release of tension due to mishandling of the descender! #Petzlprofessional | Petzl