If it seems to work, we will continue it after the pilot phase ends.” “We will also use our natural nose to smell and see if urine is there. ![]() “We will send people to see, visually, if there are any wet signs to indicate urination has happened,” he said. So how will the city know it’s actually working? Use your eyes and ears, Nuru said. The paint coats an object and creates a surface chemistry and texture with patterns of geometric shapes that have peaks, or high points, that repel most water-based and some oil-based liquids. The coating, Ultra-Ever Dry, comes from Ultra-tech, a Florida company in the chemical cleanup and waste management business that also provided the paint for Hamburg. More are scheduled to be painted next month. There are currently nine urine-repellent walls in the Tenderloin, the Mission and South of Market. ![]() Paint and installation costs a couple hundred dollars for each wall. “It will reduce the number of people using the walls. “Based on Hamburg, we know this pilot program is going to work,” Nuru said. The experiment captured the attention of San Francisco officials. Pauli quarter, where beer drinkers often can’t be bothered to find a bathroom. The paint has proved to be effective in Europe. Overall, steam cleaning requests have dropped 17 percent since last summer, largely thanks to the Pit Stop program that provides public rest rooms. They made up 5 percent of the 7,504 requests Public Works received, which cover everything from feces to pigeon droppings. Since January, there have been 375 requests to steam clean urine. Legislation banning it in 2002 but has seen little success, despite a $50-to-$500 fine. Public urination has long been a problem in San Francisco.
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