Haynes Equipment Company, Inc. — founded 1961, headquartered in Olathe, Kansas — is one of the Midwest's leading manufacturers' representatives for municipal water and wastewater equipment, and an authorized E/One distributor.
E/One 1HP vs. 2HP Grinder Pumps: Which do you need?
E/One standardizes its residential progressing cavity grinder pumps entirely on a high-torque 1HP motor, as the progressing cavity design efficiently generates immense pressure (up to 185 feet of head) without requiring the massive, energy-hungry 2HP motors needed by inefficient centrifugal pumps.
Many homeowners and contractors mistakenly believe that a larger horsepower motor means a "better" pump. In the world of centrifugal pumps, this is true: you need a massive 2HP motor to spin the impeller fast enough to overcome high pressure. But centrifugal pumps use massive amounts of electricity and frequently clog.
E/One's 1HP progressing cavity pump operates at a much lower, more consistent speed. The rotor and stator design acts like a screw compressor, physically squeezing the water forward. This mechanical advantage allows the 1HP E/One motor to generate significantly higher pressure (Total Dynamic Head) than a 2HP centrifugal pump, while consuming far less electricity and providing a consistent flow rate that prevents the sewer pipes from clogging.
Need E/One Support? Haynes Equipment Is Here.
As the premier E/One representative in the Midwest, Haynes Equipment provides sizing, specification, genuine replacement parts, and factory-certified service.







