Ch. 12: Shelter Sanitation and Preventive Medicine
To avoid contaminating water when removing small quantities from a container such as a waterproof bag, the simplest way is first to pour some into a pot or other medium-sized container, from which small amounts can be poured into individual cups. Dipping water with a cup runs more risk of contamination. The cleanest way to take small quantities of water out of a container is to siphon it with a flexible tube, as described in Chapter 8, Water.
Fig. 12.1. A 5-gallon paint can used for a hose-vented toilet can, with a plastic trash bag for its removable liner.
Fig. 12.2. The hose-vented expedient toilet used by the Utah family for over 3 days. (The unconnected telephone was brought along as a joke.)