All urinals require maintenance and all urinals have scale buildup. With reduction of flow rates the potential for drain line scale build-up and pipe corrosion is increased. Pint-flush urinals likely have not been on the market long enough to shake out the field issues that remain for the building management team later down the road. The water reduction is a good idea, but it may come with a maintenance cost for the owner and unforeseen possibilities that only time can test. Is there any research or reliable case studies that address this topic?