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Trash Pump

A reliable source for Trash Pump information and leading Trash Pump Companies & Manufacturers.

Trash pumps are portable pumps that are typically used for applications requiring the removal of large volumes of water, including soft and hard materials, mud, leaves, twigs, sand, and sludge. Most trash pumps are robust, portable centrifugal pumps with wider discharge openings and deeper impeller vanes than other pumps. Trash pumps can move hundreds, if not thousands, of gallons per minute and can process materials that have some suspended particulates that can clog other centrifugal pumps. Read More…

Trash Pump Also known as sludge pumps, waste water pumps or sewage pumps, heavy-duty trash pumps are designed to handle mud, sand, trash, soft solids, and twigs. Normal water pumps are not meant to handle solid matter and can get clogged, stopped up, or even damaged if these solids are introduced into the system.
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Leading Manufacturers

Huntsville, AL  |  800-253-2583

When it comes to moving your hard-to-handle liquids quickly and efficiently, John Blue’s centrifugal transfer and spray pumps are second to none. John Blue Company’s product lines include centrifugal spray pumps, cast iron centrifugal pumps, and polypropylene centrifugal pumps.

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John Blue Company $$$

Houston, TX  |  866-624-7867

Magnatex Pumps reliability of a broad range of products bring our current customers back and impresses potential clientele. With our focus on magnetic drive pumps and centrifugal pumps, we can provide the turbine vane pumps, water pumps, and sealless centrifugal pumps applicable as acid pumps, chemical pumps (feed, process, transfer), and hot oil pumps, appropriate to your needs.

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Magnatex® Pumps, Inc. $$$

Northbrook, IL  |  800-786-7249

Would an inventory of 9,000 pumps and pump accessories entice you to look here? We sell and repair product from dependable manufacturers—chemical pumps, horizontal and vertical centrifugal pumps, multistage centrifugal pumps, sealless pumps, sump pumps and more.

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PumpBiz® Inc $$$

Cincinnati, OH  |  513-530-0888

Vertiflo manufactures and distributes self-priming centrifugal pumps (trash and solids handling), industrial vertical centrifugal pumps, sump pumps, sealless pumps and chemical pumps. Our company was established in 1979 and has grown, developing many new products for industrial applications.

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Vertiflo Pump Company $$$

Arvada, CO  |  303-425-0800

For reliable industrial pumps and compressors, contact Sundyne for design and manufacture. Industries using our centrifugal pumps include pharmaceutical processing, chemical processing, power generation, beverage production and others. Sundyne centrifugal integrally geared compressors are engineered to run continuously for 7 years under API-617 and API-614 standards. Call today to learn more.

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Sundyne Corporation $$$
placeholder image John Blue Company Magnatex® Pumps, Inc. PumpBiz® Inc Vertiflo Pump Company Sundyne Corporation

trash pump

The trash pump does not grind the materials that it receives. Cast iron, aluminum, steel, and stainless steel are all possible materials used to construct trash pumps. Trash pumps use a big inlet and strong power to pick up debris while delivering maximum pressure and discharge flow. A trash pump can be powered by alternating electricity, direct current, compressed air, gas, diesel, or solar energy.

Trash Pump Working Principle

A trash pump draws contaminated water in and filters it before discharging it from the other end. This separation technique is performed differently depending on the type of pump. Centrifugal trash pumps are the most commonly utilized trash pump worldwide due to their portability and excellent efficiency.

trash pump working principle

When a trash pump is operating, contaminated water is sucked in. By creating a low-pressure space inside the pump cavity, the pump sucks in the fluid. A trash pump’s impeller generates the water's kinetic energy. Water is moved axially and radially by the impeller blades' centrifugal force. To further compress the water, the filtered water is directed into the volute casing while the debris and other solid particles are transported toward the pump’s central hub.

The speed is converted into pressure energy via the volute case. This power aids in processing the fluid through the pump. A trash pump should be switched when water stops moving through a pipe. A trash pump should not be used to pump gasoline, caustic chemicals, or other fuels due to the damage these materials can have on the pump. Safety and mechanical issues could result from this process.

It is important to check the water’s temperature when using a trash pump. High-temperature water can cause cavitation issues (where static pressure forms pockets of vapor-filled cavities in a liquid), boil when pulled in, harm the pump's impeller, and have a high vapor pressure.

Major Features of Trash Pumps

Trash pumps have special capabilities that enable them to move enormous volumes of liquids that are heavily contaminated with particles and rubbish. These abilities are a result of their components; some of these components are discussed below.


Trash pumps utilize an impeller, a revolving part of a centrifugal pump, which helps limit clogging. The impeller raises the liquid's pressure and flow by accelerating fluids away from the rotor. The fluid's increased pressure and flow decrease the likelihood of clogging. An impeller does not grind down the garbage and other debris; they are propelled out whole. The fibrous materials, solids, and grit are directed through the pump without grinding because of the liquid vortex the impeller generates in the casing.


A pump may become clogged if materials enter that are greater than the pump’s capacity. Strainers are installed at the inlet of trash pumps to stop debris and other materials from entering which are larger than the pump's volume. It is also essential to make sure the strainer is always submerged for it to perform its job.


Trash pumps self-prime. The priming process is performed in order to remove air and vapor from the pump and the suction line. The priming procedure entails pushing air out of the pump and replacing it with fluid, such as water. No pumping will occur if priming is not performed. A self-primer guarantees that there is always liquid in the priming chamber. If fluid levels need to be raised before starting an engine, a switch will be activated to indicate that manual priming must be performed.

Types of Trash Pumps

Although trash pumps all serve the same general purpose, variations exist to better serve specific applications. We examine a few trash pump varieties below.

Semi-Trash Pumps

Semi-trash pumps are pumps featuring smaller openings. Therefore, semi-trash pumps are not intended for use with large solids or high concentrations of solid material. Regular trash pumps are better suited for applications that need vigorous water pumping or for heavily-solidified slurries.

semi trash pump

Progressive Cavity Pumps

A progressive cavity pump moves slurries and liquids with suspended materials. The liquid enters the storage tank after flowing from the pump's delivery side to its suction side. These pumps effectively move highly- viscous, slowly-moving materials while allowing the liquid to flow continuously from them. Progressive cavity pumps are relatively simple to clean and, as a result, are used in situations requiring greater hygienic standards.

progressive cavity pump

Positive Displacement Pumps

Positive displacement pumps move fluids through pistons, gears, diaphragms, and other components. A vacuum is produced when a fluid enters their fixed chamber and is pumped out. This vacuum is also useful for moving objects. Displacement pumps work well when pumping viscous liquids under high pressure.

Syringe Pumps

Syringe pumps handle materials that need precise flow rates at precise times. The two types of syringe pumps are infusion pumps, which process fluid under tightly-controlled pressures, and withdrawal pumps, which are used to remove fluids.

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