The EWOC is an environmentally friendly concrete washout container. It allows efficient cleaning of concrete tools and equipment, such as concrete truck chutes, power buggies, mortar mixers, screeds, and hand tools. It is innovative because of its size, versatility, and ability to recycle concrete wash water. It eliminates the risk of civil penalties due to its compliance with concrete washout mandates. Construction Midwest. 800-288-8322.