Home Water Supply

Other problems that cannot be easily identified include: • Chlorine Byproducts - created when chlorine reacts with other substances in water. • Toxic Elements - such as hexavalent chromium, arsenic and lead. • Volatile Organic Compounds (VOCs) - include commercial chemicals and pesticides. • Microorganisms - include cysts, bacteria and viruses that can live in water. The above contaminants are not necessarily in your water. The only way to be certain is to have your water tested. Options for Improving Your Water The good news is that there are a number of options available for improving your drinking water: Bottled Water Although it's no longer the most popular drinking water alternative (41 percent of WQA survey respondents use home water treatment devices while 39 percent use bottled water), bottled water remains a strong second. Unfortunately, the variety of bottled waters (spring, purified, distilled, etc.) can make it difficult to make a decision. And bottled water is expensive, often costing more than $1 per gallon, and cumbersome to carry home from the store. Carbon Filters Activated carbon is used in a number of devices including filter carafes, faucet-mounted filters, countertop units and undersink systems to reduce chlorine, VOCs, tastes, odors and, in some cases, lead, MTBE and cysts. Systems of this type normally treat only your drinking water and don't filter the water used for washing dishes, hands, etc. at the kitchen sink. Filter cartridges must be changed regularly to ensure continued contaminant reduction. Choose a system that measures your water usage and shuts off to prevent filter overuse and alert you when a filter change is necessary. Most systems can be installed by a do-it-yourselfer. Reverse Osmosis (RO) Systems Reverse osmosis systems are recommended by the Centers for Disease Control and the EPA as one of the most effective ways of protecting residential drinking water. These very popular, professionally-installed systems utilize a semipermeable membrane to reduce contaminants. When water is forced against the membrane, a portion of it passes through, while impurities are left behind to be carried away. Reverse osmosis is effective against dissolved salts, suspended solids, dissolved chemicals and a wide variety of other contaminants that cannot be seen by the naked eye. When choosing an RO system, look for a unit with a high efficiency rating. Certain systems also employ a membrane rinse feature that cleans the membrane with the high quality water produced by the system to prolong its life and ensure that it continues to produce only the best quality water. Systems that do not clean themselves or that only clean themselves with untreated water are not as effective. One of the most important considerations and one of the best indicators of overall system quality is the RO membrane warranty. Look for a system that offers a full membrane replacement warranty (not just a pro-rated warranty) that covers membrane performance for several years.

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