Like ejector pumps, sewage grinder pumps are sold as both standalone units and as pre-assembled simplex or duplex systems with sewage basins. They range in power from 1 horsepower to several, and can typically pump sewage at volumes of up to 3,000 gallons per hour (50 gallons per minute) for very long distances (multiple thousand feet) with maximum head pressures of 40 to 120 feet or more. They’re frequently described as high pressure and low volume pumps because they’ll push sewage more slowly than ejector pumps but can do it for much longer distances, to much greater heights, and can support much higher pressures at the sewer main.Ī sewage grinder pump can easily handle 2 inch solids, and will also be able to handle difficult artificial solids, like feminine hygiene products (pads, tampons, etc), rags, towels, diapers, diaper wipes, napkins, underwear, and a range of other things that shouldn’t be flushed down toilets but often are. However, unlike ejector pumps, they also include grinding blades (hence the name) designed to grind sewage and other objects into slurry and slush before discharging it. Like ejector pumps, they’re designed to process sewage. What is a sewage grinder pump?Ī sewage grinder pump is like an ejector pump on steroids. Quality examples of pre-assembled systems include the Liberty Pumps P382LE51 and Liberty Pumps P372LE51. Quality examples of standalone sewage ejector pumps include the Zoeller M267 and Liberty Pumps LE51A. Overall, ejector pumps are cheaper than grinder pumps, which will be discussed in detail below. Pre-assembled systems are more expensive than equivalent standalone systems, but last longer due to their design and are also simpler to install. They are sold as standalone models and as pre-assembled simplex or duplex systems (which include sewage basins). They can typically pump sewage at volumes of up to 10,000 gallons per hour (166 gallons per minute) for short distances (under 700 feet) with maximum head pressures of under 30 feet. They don’t have grinding blades, but make use of quickly-rotating impellers that draw raw sewage vertically up and under pressure from the inlet to the outlet, which then connects to a discharge pipe.Ī sewage ejector pump can typically handle solids up to 2 inches in diameter, and range in power from 3/10 horsepower to 2 horsepower. They’re frequently described as high volume and low pressure solids handling pumps, because they can push sewage quickly but without much pressure from a home into a septic tank or a sewer main that operates by gravity flow. What is a sewage ejector pump?Ī sewage ejector pump is a submersible utility pump capable of processing solids. If you’re in a hurry, the long and short of it is that while both are designed to handle sewage (i.e., urine and feces), grinder pumps can also handle flushed trash, making them a better, though more expensive choice for crucial (e.g., commercial) situations you can typically get away with an ejector for most residential situations. But what’s the difference between both kinds of pumps, and which kind is the better choice for your home or small business? We’ll answer both of these questions and more below. These packages are designed to be installed in a basement floor or crawlspace.We’ve reviewed a number of sewage pumps in the last year, including sewage grinder pumps and sewage ejector pumps. The Liberty Pro Series Pre-Assembled Sewage System is one of the most feature packaged, best selling sewage systems on the market. Integrally Molded Torque-Stops for Pump Stability.QuickTree Removable Float System Allows Easy Access To Switch - Separate From Pump!.Integral Rubber Gaskets Attached To The Covers.Includes Duplex Alternating Pump Controller with Plug-In Ready Cords for Quick Installation.
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