ValuPrime priming-assisted, centrifugal pumps from Gorman-Rupp are ideally suited for dewatering needs and are based on the Prime Aire and Prime Aire Plus lines. The pumps come in 4-by-4-inch and 6-by-6-inch sizes, flows to 1,520 gpm, a total dynamic head to 150 feet, and solids handling capabilities up to 3 inches. 419-755-1011; www.grpumps.com.