This article discusses a system design to minimize microfiltration membrane maintenance at the Westchester Joint Water Works in Mamaroneck, New York. Several cleaning steps were used to remove contaminants from membrane fibers and keep them free of fouling. Frequent air agitation, backpulsing, and deconcentration were used to remove solids from the fibers. More aggressive cleaning programs‐‐ maintenance and recovery cleaning‐‐ were used with chemicals to remove fouling. The wastes produced from each of these steps must be handled carefully and within the constraints of local utilities, available property, and capital/operational costs.