Drinking water bacterial test

WaterBacteria Check is ideal for screening drinking water samples for total coliform bacteria. The method is a simple modification of the multiple-tube method. Simply combine 100 ml of sample with the disposable bottle containing the P/A broth and let sit at room temperature for 48-hours. A color change from purple to yellow indicates the presence of coliform bacteria. Complex chemistry, made simple.


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  • The quality of drinking water should be checked regularly every three to five years
  • Water quality should also be checked whenever substantial changes in color or odor are observed in water.
  • Water is not necessarily worth drinking, even if there are no noticeable color or taste differences, as many substances and bacteria are not detectable.
  • Water quality can be affected, for example, by extreme weather phenomena, such as heavy rains, flooding.



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