In times of disaster, water is very essential for survival. If you need to carry water, make yourself a water tank. [From "How to Craft Safety"]
Materials and equipment: Backpack, two garbage bags
How to craft:
1. Line the inside of back pack with two layers of garbage bags.
2. Fill with water, and tightly secure the tops of each garbage bag.
Memo: This is an effective way to transport water to higher floors during water outages.