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New Tank Bactericide - Built-In!
News of a water storage tank that is bactericidal - e.g. to E.Coli within 48 hours: brass! British researchers joined with Punjab U researchers to check the supposition that the Indian tradition of carrying water in mutkas (brass pots) was beneficial - which confirmed the suspicion, given a dwell time of 48 hours plus. The action stems from a low copper leaching rate out of the container. The copper level in the water is extremely low and safe - in fact, only a fraction of the recommended intake. [New Scientist, 9 April 2005, p.14] Brian Whatcott Altus OK |
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