WAT-002 · WaterHand-turned water pump
Build a small tubing-spiral pump with four illustrated steps, intake checks, and troubleshooting. Moves water; does not purify it.
Field guides Water
GUIDE ID WAT-###
WATER.
3 free guides. Find it, move it, and don’t drink the weird stuff.
WAT-002 · Water
WAT-001 · WaterWater field guide
Cloth pre-straining, boiling, and clean storage, illustrated with Nuke.
WAT-003 · WaterPLANT WATER
A leaf-bag transpiration experiment with five visible steps, a comparison bag and an observation record.
Every PDF is free: no email, account, or payment. Guides expand on the videos with sources, safety notes, and practical limits.