Appendix B
Page 15
Although proven antibacterial effects, silver tablets are not licensed as a water
purifier in the U.S.; however, they are widely used in Europe for this purpose. In addition
to poorly documented effects on all different types of microorganisms, there is some
difficulty controlling the residual concentration and concern over chronic effects. This
product makes no claims for viruses and protozoa, because concentrations may not be
adequate to kill these organisms. Silver has the advantage of having no taste, color or
smell. It has been approved by the EPA to be marketed in the U.S. as a "water
preservative" to maintain bacteria free water for up to 6 months.
The following products cannot be recommended due to insufficient effectiveness
data
Traveler's Friend (Nutrabiotic) $6
Description
Extract from citrus seeds in 10 ml plastic dropper bottle; size: 1x2"; wgt: 1 oz; capacity:
approx 20 qts.
Claims
"All natural treatment for drinking water." Non-toxic, non-corrosive, proven effective as
disinfectant for bacteria, viruses, protozoa. Recommended dose (drops/qt): 5-10 for
filtered water, 10-15 for ice water, 10-20 for tap water, 15-25 for untreated water. Allow
30 minutes contact time.
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