UD5 Toolkit
Bite Valve Cleaning Schedule – Prevent Mold in Soft Flasks
A weekly reminder to disassemble and soak the bite valve and straw. Keeps your hydration vest from tasting like a swamp.
Home & Auto Maintenance
4+ toolsTent Zipper Maintenance Log – Lubricate Before It Snags
Log the number of nights used and get a reminder to apply zipper lubricant before the zipper starts sticking. Prolong tent life.
Filter Backflush Timer – Maintain Flow Rate of Sawyer/Platypus
A reminder to backflush your hollow‑fiber filter after a certain number of liters or when flow rate drops. Keeps water flowing.
Knife Sharpening Angle Trainer – Hold Your Pocket Stone Correctly
Use your phone's gyroscope to practice holding a knife at exactly 20° on a flat stone. Build muscle memory for field sharpening.