Water Filtration

Water treatment systems that treat only drinking and cooking water are commonly called POU (point-of-use) systems. Water systems that treat water in the entire house are called POE (point-of-entry) systems. Water softeners are an example of POE systems, as are large tanks filled with various filtration media. In some instances, especially where radon gas, volatile organic chemicals (VOCs), or pathogens are in the water supply, it is desirable to have safe drinking and washing water at all water outlets in a house.

POE systems for health-related treatment can consist of one or more large canisters or tanks filled with granular activated carbons or other filter media. They can be simple flow-through tanks or timer-controlled tanks with automatic backwashing. Simple flow-through canisters and tanks for whole-house water treatment systems can cost from around $300 to $800. Automatic backwashing systems typically cost from $1,100 up to several thousand dollars. For removing chlorine, VOCS, or radon gas, a single, flow-through tank with granular carbon will suffice. If bacteria or viruses are a concern, a POE UV system or an ozonation system is required. If cysts are a concern, a large carbon block filter or an ultra-filtration filter is indicated.

Simply type “whole house water filtration systems” into any Internet search engine to find a wide range of suppliers.

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