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Part Number:350

Point-of-Entry (POE) or Point-of-Use (POU) Water Treatment Systems... Which type do you need?

There are essentially only two principle locations for installing water treatment systems. Which of the two systems you need depends upon what you hope to accomplish. One is Point-of-Entry water treatment (POE), the other is Point-of-Use water treatment (POU). What's the difference?

Picture the water supply where your local municipality or other supplier delivers water to your house, office building, factory, plant or other facility. At the point where the supply enters the building, it's connected to a water meter. Your side of the meter is your responsibility and expense. You might be stuck with the water as delivered, but you don't have to like it or settle for its quality (or lack of quality). There are a lot of POE and POU systems that can help you improve the quality of water before you drink it, cook with it or bathe with it.

A Point-of-Entry water treatment system is installed on your side of the meter with the express purpose of treating all of the incoming water before it goes into the individual supply lines that feed your laundry, bathrooms (including toilets), dedicated outside faucets and others as well as your kitchen. POE systems often include softeners, large bed carbon filters, and some systems which are specifically designed to remove (or trap) sediment, foul tastes and odors. POE systems are sometimes considered pre-filters. A Point-of-Use water treatment system is installed in an individual source line ahead of any or all of the building's taps, faucets or other dedicated outlets used to dispense water for drinking, cooking or bathing. Good POU systems are often expected to capture whatever escapes the POE system.

Sediment water filters are designed to remove rust particles, sand, silt, scale particles, fine, coarse, extra-fine, loose scale, clay or organic material from water or other suspended materials. Pathogenic bacteria can hide within these materials or make the pathogens hard to remove. Sediment water filters can be used as pre-filters in combination KDF85/GAC Filter.

Why use KDF Process Media?

The marketplace is filled with good water filtration/purification systems and technologies (We should know - many of those manufacturers are some of our best customers.)

So why consider using KDF Process Media? We can give you two good reasons (See "Benefits of KDF Process Media" below). One: Because KDF Process Media enhance the performance, extend the life, reduce the maintenance and lower the total cost of many available carbon-based systems. Two: KDF Process Media help control microorganisms by creating an environment that's deadly to some microorganisms and that interferes with the ability of many other microorganisms to function. Either way, the use of KDF Process Media results in the total elimination of some contaminants and a great reduction of a wide variety of others.

Benefits of KDF Process Media

  • Significantly extend the life of granular activated carbon
  • Are recyclable
  • Effectively remove chlorine and heavy metals and control microorganisms
  • Are available in four granular styles, each designed for a specific need
  • Outperform silver-impregnated carbons
  • Require no EPA registration, thus less red tape

Where are KDF Process Media used?

KDF Process Media are used in a variety of pretreatment, primary treatment, and industrial applications. They are generally used in place of, or in conjunction with, granular activated carbon filters, even carbon block or inline filters. KDF Process Media extend the life of granular activated carbon (GAC) while protecting the carbon bed against fouling by bacterial growth.

Our water filter media are also used to replace silver-impregnated systems. Silver is toxic, KDF Process Media are not. Silver must be registered with the EPA as a toxic pesticide, KDF Process Media do not. By the way, silver is more expensive than KDF Process Media.

KDF Process Media vs. Activated Carbon

 KDF MediaActivated Carbon
LifeMore than 6 years*Only 6 to 12 months
Bacteria and AlgaeControls BothPermits Growth
DisposalRecyclableHazardous Waste
Lb/cu ft17135
Contaminants EliminatedInorganicOrganic

* With proper handling

What about KDF Process Media and RO, DI and IX systems?

Reverse Osmosis (RO), Deionization (DI) and Ion Exchange (IX) systems benefit from the use of KDF Process Media because our Media allow these systems to tend to their strengths. Our Media protect RO systems from chlorine degradation and bacterial contamination, extending the life of the systems' membranes. KDF Process Media protect expensive IX systems from becoming fouled with chlorine, algae, fungi and bacteria. Less fouling, longer life and reduced maintenance, all combine for lower costs.

KDF Process Media vs. Silver-Impregnated Carbon

 KDF MediaSilver-Impregnated
Carbon †
LifeMore than 6 years*Only 6 to 12 months
Bacteria and AlgaeControls BothPermits Growth
DisposalRecyclableHazardous Waste
Heavy MetalsYesNo
pH6.5 to 8.5Sensitive
UsePOU/POE, Industrial, CommercialHome Water Filter Products
US EPA RegistrationNot RequiredRequired

Note: Gulf South Research Institute found silver-impregnated carbon provides the same performance as activated carbon, except in low pH water.

* With proper handling

  • 1 20"x 4.5" KDF55/GAC CARTRIDGE
  • 1 20"x 4.5 SEDIMENT FILTER
  • Big Blue Filter Housing Wrench
  • Assembly Required
  • 8 Mounting Hex Bolts
  • 1 Connector 1"x2" Threaded

The life of filter depends on the contamination levels and amount of water consumed daily. The normal filter life for typical non commercial application is about 20,0000 gallons. For good results and longer filter life sediment filter is included.

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