The Portable Sink Trailer from MONSAM Enterprises is self-contained with amenities designed for rapid deployment, and can be customized to suit individual needs. It has 100-gallon freshwater and 150-gallon wastewater tanks, eight sink stations with ADA faucets, optional electric- or propane-powered water heaters, water inlet/garden hose connections, soap dispensers, paper towel holders and mirrors. 800/513-8562; www.monsamsinks.com.