Colorado River Grand Canyon, October 2012 - joefromsf
We must carry all our drinking water.  When we run out, we filter more.  Wick designed the "power" filtering system.  A large battery pumps a bucket of river water through 2 filters, which go into our water tanks.  Alum is used first to settle any silt to the bottom of the bucket.

We must carry all our drinking water. When we run out, we filter more. Wick designed the "power" filtering system. A large battery pumps a bucket of river water through 2 filters, which go into our water tanks. Alum is used first to settle any silt to the bottom of the bucket.