QualaWash, a PE-backed provider of commercial cleaning and maintenance services to the portable bulk container industry, has acquired two regional cleaners as add-ons. Backed by Roark Capital, QualaWash has acquired Stallion Tank of Salt Lake City, UT and Sparkle Klean of Charleston, WV. The services provided by the two acquired companies overlap with many of QualaWash's, which include tank/ISO/IBC cleaning, food grade cleaning, tank and container heating and tractor/trailer maintenance, among others. The purchases allow QualaWash to further expand its reach in the Mountain States and Appalachian regions. Roark acquired the platform in June of this year from previous PE-backer KLH Capital.