Article
Point-Of-Entry Systems: Examining Water Treatment Options
February 7, 2012
Point of Entry (POE) is the term commonly used to define any water treatment system or combination of systems, designed to alleviate water quality issues at the point where water enters a building, prior to distribution to the water heater, kitchen and washrooms. This in contrast to POU systems designed to be installed under the counter or even directly on to a drinking water faucet, with limited treatment capabilities. The most applicable system is usually determined by assessment of a comprehensive water test, understanding consumer expectations and offering a range of appropriate options.
Equipment used in POE systems can range in sophistication from a simple hardware store purchased sediment filter to a suite of products performing complimentary tasks, designed to provide aesthetically pleasing, palatable and safe drinking water. In major population centres of the developed world, the most familiar piece of POE equipment is usually a water softener, which works by employing the principle of ion exchange (exchange of calcium and magnesium dissolved ions with sodium or potassium ions).
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