Submersible Effluent Pumps Submersible Effluent Pumps Effluent Pumps are utilized in variety housing material. They are typically used for grey water which means lighter duty wastewater. HEF AMulti-use water pump including general or gardening water intake and rain water draining to dewatering in construction site. Download Catalogue HEF S High head dirty water pumps with stainless steel strainer. Vortex impeller design for large pass solid. Download Catalogue