It occurs to me that in this era rules of the desert apply:
- Carry your own water, lot's of it. Keep your eyes peeled for water sources.
- Careful where you tread. Watch for black widows, scorpions and rattlers.
- Respect cactus. They're survivors and have thorns and spines.
- Know where you are. Have a map and GPS, the desert can be disorienting.
- Avoid the spotlight of the sun. Stay in the shade, wear a hat.
How to Build a BioSand Filter
http://www.youtube.com/watch?v=l7iGLSTZY84
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