Some cool Drinking Water Options images:
Parting the red sea
Image by rahid1
Once more toying with the frankly odd solarization option in the k700i – sunny day, water bottle, crazy shorts, boredom.
Note for the Face group: while is not strictly a face, via the miracle of light refracting through water and molded plastic and insane camphone filters it looks like one to me.
Image by tobo
One topic on the trail is how to treat water; on our first day we passed at least one dayhiker who mused, "I remember when you could drink the water in the streams…." Surface water in the Sierras is now assumed to contain various microorganisms (such as the protozoa Giardia and Cryptosporidium) that are apt to make people sick. To be safe your choices are to pump your water through a filter; to boil it for a few minutes; or to use iodine tablets. All of these options are a little bit annoying; a filter is another thing to carry and takes time to use; boiling requires a large amount of fuel and results in hot water; and iodine has a funny taste and may not be completely effective. We carried and generally used a filter.
But of course the cowboys didn’t. After leaving their camp and coming to this stream coming off a high ridge with no trails, we were inspired to forgo the tedious filtering process and instead just fill our bottles directly from the stream.
The article "Giardia Lamblia and Giardiasis With Particular Attention to the Sierra Nevada" by a fellow physicist from U.C. Berkeley provides an interesting discussion of the mountain water quality situation, alleging that the Giardia scare is way overblown.
Anyway, so far so good.