Evaluation of Drinking Water Quality from Stainless Steel Fountain Water Dispensers Equipped with Point-of-Use Water Filter
Keywords:
Drinking water, Water dispenser, Water filter, Ultrafiltration, UltravioletAbstract
This study aimed to analyze and control the quality of drinking water from five stainless-steel fountain-type water dispensers equipped with point-of-use filters. Drinking water samples were collected monthly from January 2024 to June 2025. Six parameters were evaluated: pH, total dissolved solids, total bacteria count, coliforms, fecal coliforms, and Escherichia coli, and results were assessed against drinking water quality standards. In the first phase, 30 samples were collected over a 6-month period using an ultrafiltration system. Only 10 samples (33.3%) met all quality standards. While total dissolved solids values were within the acceptable range and E. coli was absent in some samples, pH values were below the standard, total bacterial counts exceeded the standard, and contamination with coliforms and fecal coliforms was detected. Following replacement of all filter cartridges with an ultraviolet (UV) system, the second phase was conducted, during which 60 samples were collected over 12 months. In this phase, 100% of the water samples complied with drinking water quality standards.
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