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Re: Filter Checking

Dick Wix wrote:

>>>  First Need once supplied a "coloring dye" to check their filters... I
don't know if it was only food coloring or not... I have not seen anything
like this from other filter companies, ie MSR, PUR, SweetWater, Katahdin,
Timberline, etc... <<<

Actually First Need supplied the dye so you could "mark" the bottle with
clean water.  It had nothing to do with the filter.