I live at the very base of the Eastern Sierra. I will always filter my water after a hike last week.... whereby upon closer look into a pool..... I saw a knot the size of a baseball.... looking like thin grass in a ball. Well..... after further investigation.... this was a ball of tape worms. They came to life and I was sickened by the sight. Tiny thin threadlike worms in 2 foot strings that started swimming like sea snakes. Further I found leaches that swam to the surface trying to attack my shade created by my hand. The leaches had sharp teeth and swam across the surface face up. Granted this was slow moving water.... I am certain the eggs make their way up and down stream from spots like this. I now believe our water supply has become contaminated by all the livestock that is allowed up into our Sierras. I am happy to return to take photos for anyone interested. It was a nightmare to behold. I will NEVER chance drinking from our streams here without filtration.
That being said.... I have read that the SteriPENs does NOT work against tapeworm? Is that true?
Anyone want to recommend the MSR over the Katadyn or vice versa with the latest 2013 models that are out?
This quote is right on from what I have found. "Now, after 10 years of fieldwork and 4,500 miles of backpacking, Derlet knows for sure. What he has learned, after analyzing hundreds of samples dipped from backcountry lakes and streams, is that parts of the high Sierra are not nearly as pristine as they look. Nowhere is the water dirtier, he discovered, than on U.S. Forest Service land, including wilderness areas, where beef cattle and commercial pack stock — horses and mules — graze during the summer. There, bacterial contamination was easily high enough to sicken hikers with Giardia, E. coli and other diseases."
Oh and in case you all did not know.... the cattle are allowed to graze ALL over the Sierra's. And now I would join a fight to ban that..... without hesitation.