Having your water tested by a professional is the best to way to establish your home’s specific water requirements. A water expert will verify a number of things before recommending a system, such as water pressure, water hardness and your average water use. “It’s always a good idea to hire a local firm to test your water,” says Jim Fisher, president of Culligan Water of Sonoma County in Santa Rosa. “Not only does dealing locally mean better service, but the company will be knowledgeable about local water conditions and aware of the common water problems in your area. A firm without a local presence won’t know any of that.”
Here are some general tips to consider when shopping for a home water filtration system:
Look for certifications. Water filtration systems that have been certified by the Water Quality Association or the National Sanitation Foundation (NSF) have been meticulously tested to meet strict health and safety standards.
Find systems endorsed by local health departments. Besides the NSF’s certification, several systems are supported by local and state health departments, giving extra assurance of their filtration capabilities.
Make sure you have the right filters. If tests show your water has more than one pollution problem, for example, make sure you receive filters that are designed to eliminate multiple contaminants. It’s not absolutely necessary to replace filters every month, so ask how often you’ll have to change them and how much each replacement filter costs.
Understand the system’s features. In some systems, the filtered water flows directly from the tap to your glass, while others require a storage tank. Tanks are good for storing water that can be used in case of an emergency, but dispensing may be slower than other systems. Understanding the advantages and disadvantages of the system can help you make a final decision.
Don’t settle for the least expensive solution. A higher-priced unit may serve your needs better by being more efficient and reducing operating costs. Before you buy, get a detailed estimate of equipment, installation and average operating costs.
Be aware of financing options. Water conditioning equipment may qualify for financing under FHA Title 1 or private lending agreements. Check with your local bank or finance company for more information. Your local water dealer may also offer special financing options.

