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GBlist: Re: Rainwater collection



What sort of filtration is required for rainwater collection systems to
be used as a  potable water supply?  In Ketchikan, AK, Many people use
cisterns, and with 160 inches of rain annually, the roofs are washed
clean on a regular basis.  I have heard stories of birds and animals
getting into the cisterns and drowning, and not being found 'til the
water tastes funny.....however, I have not heard of anyone actually
getting sick because of a contaminated water supply. 


Scott Waterman
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