Expert Warns Against Unnecessary Spending on Water Filters
A water quality expert advises consumers to understand their local water characteristics before purchasing filtration systems, as many common issues are harmless.
Millions of consumers may be wasting money on expensive water filters due to misconceptions about their tap water quality, according to an expert in the field. Julie Dolman, who leads the technical department at Doulton Water Filters, suggests that many perceived problems with drinking water are actually harmless regional variations.
Dolman stated that while UK drinking water adheres to strict standards, the characteristics can differ significantly across the country. She identified five potential 'red flags' that consumers often mistake for contamination, but which may have benign explanations.
One common concern is a persistent change in the taste, smell, or appearance of water. While Dolman advises against ignoring significant or unusual changes, she notes that variations can be due to factors like chlorine used in treatment, naturally occurring minerals, or water that has been sitting in pipes. If such changes are noticed, contacting the local water supplier is recommended over assuming a filter will solve the issue.
A noticeable change in water quality or limescale buildup after moving to a new house is also frequently a source of concern. Dolman explains that water composition varies based on its source and local geology, impacting mineral content and taste. She suggests checking local water supplier reports online to understand the typical characteristics of the area, as differences do not necessarily indicate unsafe water.
Cloudiness in water, often appearing milky, can be caused by trapped air bubbles, especially after pressure changes or maintenance. These bubbles typically dissipate when the water is left to stand. However, persistent cloudiness, particularly when accompanied by changes in taste or smell, warrants contacting the water supplier.
Dolman also cautions against the assumption that any change in water automatically requires a filter. Different filtration technologies target specific issues, and understanding the root cause—whether it's taste, odor, hardness, or a specific contaminant—is crucial before deciding on filtration. Consumers should also review performance data and certifications like NSF or WRAS.
Finally, Dolman emphasizes the importance of understanding one's local water supply. Researching hardness, mineral content, and treatment processes can help explain observed water characteristics and provide a better basis for deciding if filtration is truly necessary and appropriate for specific needs.