Portable Restroom and Septic Cleaning Services We rent portable restrooms from our Milbank and Watertown locations and we do Septic services out of our Milbank location. We rent portable toilets for all events, weddings, reunions, construction projects and any other reasons needing portable restrooms. We also have a mobile restroom trailer with flushable toilets and running water for your nicer events. Check out our website for our coverage area and other information @ http://www.facebook.com/RoyalFlushSanitation