Activated Carbon Filtration
Point-of-Use Activated Carbon Filtration
The importance of Clean, Clear Water
Water is such a basic part of our life that we often take
it for granted. After all, water covers over 70% of the
But did you know that a mere one percent of the earth's
water is available as freshwater supplies, either in
groundwater, lakes, rivers and streams, or frozen in glaciers
and polar ice caps. That precious fresh water may contain
natural or manmade pollutants, or simply have an
unpleasant taste or odor.
That's why more and more people are turning to pointof-
use (POU) water quality improvement systems to solve
many of their water problems. These systems give the
consumers control over the amount of water to be
improved, the level of improvement, and the uses for the
How Activated Carbon Filtration Works
An effective method of improving water quality at the
point-of-use is through activated carbon filtration. Long
considered a "proven technique" for reducing soluble
organic contaminants, an activated carbon filter can
reduce organics and solid particles, as well as offensive
tastes and odors from water.
Because of its molecular make up, activated carbon
can absorb well That means it can take in or collect
many organic molecules on its surface.
Questions and Answers about
Point-of-Use Distillation Systems
Q: Specifically, what types of pollutants does
activated carbon trap?
A: Activated carbon filters effectively reduce a wide
range of organic materials, such as those listed in this
brochure, as well as certain pesticides and fungicides.
In addition, it reduces disagreeable tastes and odors,
such as chlorine, from treated water.
Q: Will my water have a "charcoal" taste if filtered
by activated carbon?
A: No. Your water should have a fresh, clean taste. In
fact, many people claim that using filtered water
enhances the aroma and flavor of coffee, tea, juices,
soups, and other drinks.
Q: What about expense?
A: With a point-of-use activated carbon filter, consumers can improve the quality of their drinking and cooking water
for just pennies per gallon depending on the size of the unit.
Q: What types of point-of-use activated carbon filters are available?
A: There is a range of sizes of point-of-use activated carbon filters; faucet mounted under-the-sink filters, and wholehouse
filters. The most common, but smallest, is the faucet-attached point-of-use filter. Quick and easy to install, this
filter is either attached directly to the faucet outlet or placed on the counter and attached to the outlet via a hose.
Some faucet attached filters have a lever that routes water into the filter only on demand, thus prolonging the life
of the filter.
A stationary activated carbon system can be installed under the sink. Before you buy this kind of system, measure the
space under your sink to ensure a proper fit. Under-sink filters come in two types - those that filter all the water going
through your faucet and those attached to the cold water line and a separate spout, thus using the filter only when
Whole-house units filter all water entering the house. This can be important when treating for contaminants which
can be absorbed during bathing or showering, or from inhalation. Talk to your Certified Water Specialist to determine
which system is best for you.
Q: Will activated carbon filtration remove all contaminants from my water?
A: The level of contaminant reduction for activated carbon filtration will vary. Reductions depend on conditions such
as the degree of contamination, the size and type of equipment, and product maintenance. No system can be
warranted for a total elimination of all contaminants in all conditions. Consult your local WQA professional or the
manufacturer for additional information.
Q: What about the maintenance of the unit?
A: For the activated carbon filter to be effective, most require maintenance involving periodic replacement of
cartridges. Maintenance is critical to a well-functioning system. Cartridges can generally be replaced by the homeowner
or a maintenance agreement can be reached with the local dealer. The life of the cartridge depends on the
amount of water passing through the filter, the amount of impurities or contaminants present in the water, and the
size of the filter. Consult the manufacturer's guidelines or your local professional if you have any questions.
- Unpleasant Tastes
- Unpleasant Odors
- Trihalomethanes (THMs)
- Certain Volatile Organic Contaminants
- Certain Pesticides and Fungicides