Culligan Replacement Water Filters + Hf-160
Because the source of our drinking water varies, the treatment it receives before coming to our tap also varies. For
these reasons, we can no longer take the safety of our drinking water for granted. Some of the more common natural
sources of pollution include:
microorganisms; underlying rock; nitrates and nitrites. Human Activities causing pollution include: bacteria and
nitrates from human and animal wastes, septic tanks and large farms; household wastes such as cleaning solvents, used
motor oil, paint, paint thinner, and pharmaceuticals. Most of us are familiar with problems caused by E. coli in
the water
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Pollutants in Water
Many other chemicals are added to our tap water before we drink it, which at the very least will include fluoride.
Most drinking water comes from three sources.
Ground water - which is heavily saturated with suspended matter and dissolved acids (which give it the brown
colour). To clear this water, aluminium sulphate (alum) is added as a coagulant and then chemical polyelectrolytes are
added to further settle the coagulated wastes. This water is then passed through sand filters to remove the settled
particles. Some of the chemicals remain in the water.
Surface dam water - to which
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