The CP 0010 and CP 0020 sump pumps can handle discharge rates of 255 and 340 gal./min., respectively. The CP 0077 sludge pumps—ideal for pumping seawater and certain corrosive chemicals—can easily handle water containing up to 15% solid material and up to 1-in. particles, all at a 90-gal./min. discharge rate. Chicago Pneumatic. 800-760-4049.