Myers Model DS Series 1/3, 1/2 and 3/4 HP Stainless Steel Submersible Sump Pump Series - Used For Dewatering From Construction Sites, Ponds, Pits, Tanks And Extracting Water From Foundations Or Flooded Basements. The DS series pumps are designed for basement sumps, but are also ideal for dewatering duties in a variety of applications. This versatile pump features stainless steel construction for extreme resistance to corrosive environments and will provide years of superior service.