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PurTest Bacteria Test is a do-it-yourself EPA based test that allows you to screen your water for dangerous levels of bacteria, Test for Ecoli (Escherichia Coli) and coli form bacteria which if present, indicate the possible existence of harmful bacteria. Add water sample to the test vial that includes the reaction media, shake and set aside. A color change from purple indicates unsafe conditions. Easy, reliable, fast, accurate, convenient. Nothing to mail, everything you need is included in the test. A free test for Nitrates and Nitrites is included with the test.
Do-it-yourself screening test for bacteria in drinking water