Simply stated, the SODIS water treatment uses sunlight, 6 hours of sunlight, and empty soda bottles to produce safe disinfected water suitable for drinking.
SODIS means "solar disinfection" and is used in several developing nations. In the USA, we have excellent water treatment systems and this is unneeded. In unthinkable situations, this could be used.
Your water is clear enough for the SODIS method. How much water do you need per person? 4 liters per day. So, 2 bottles per person. Consider doubling this number - 2 for treating, 2 that are cooling.
Remember, this is not meant to be a routine way of treating water, it is a suggestion for something that can be used in extreme situations. A later Snapguide will discuss how to treat cloudy water.
If you are interested in helping people in other societies to have safe drinking water, visit www.flowingstreamsministries.org Thanks!