[quote="mark"]but the letting the water sit for a week has be more for getting rid of chlorine or chloramine for they support using tap water and not using dechlorinators etc.[quote]
Chlorine will dissapate from tapwater if left long enough. Chloramine, which is a compound made of chlorine and ammonia, will not. Chloramine treated water defintitely needs a dechlorinator designed for use with its particular chemistry, such as Amquel and Prime.
Chloramine has replaced chlorine in many municipal water supplies because chlorine does dissapate making it a less useful guard against the pathogens found in untreated drinking water. Boiling water for 30 minutes, or so, also gets rid of these pathogens. Walkerton is a good example of pathogens not being killed.
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