A septic pump is used to move wastewater or effluent from one part of a system to another. Depending on the design of the system, a pump may be needed to transfer liquid from the tank to a drain field, mound system, spray field, or other treatment area. Some pumps handle relatively clear effluent, while others are built to handle solids and more demanding applications.
Because every septic system is different, it is important to know what each pump is designed to do.
Effluent pumps are one of the most common pump types used in septic systems. These pumps move partially treated wastewater, also called effluent, from a septic tank or pump basin to the next stage of the system.
Effluent pumps are typically used in systems where wastewater needs help reaching the drain field, mound, sand filter, or secondary treatment area. Since the solids should already be separated out before the liquid reaches the pump, effluent pumps are designed for relatively clear wastewater with small suspended particles.
These pumps are often used in:
Sewage pumps are built to handle raw wastewater containing solids. These pumps are generally used when waste from the home must be lifted to a sewer line or septic tank due to elevation challenges.
Unlike effluent pumps, sewage pumps are designed to move solids along with liquids. They are a good choice for applications where untreated wastewater is being pumped directly from a basin.
Sewage pumps are commonly used in:
Grinder pumps are designed to break down solid waste into smaller particles before pumping it through the system. These pumps are often used in demanding systems where waste must travel through smaller pipes or over longer distances.
A grinder pump is similar to a sewage pump, but it includes grinding components that reduce solids before discharge. These pumps are often used in commercial applications or residential systems with difficult site conditions.
Grinder pumps are often found in:
Sump pumps are not septic pumps, but they are often confused with them. A sump pump is designed to remove groundwater or collected water from basements or crawl spaces. It should not be used for septic wastewater.
A sump pump helps prevent flooding and water damage, but it is not built for sewage or septic effluent.
A lift station pump setup is used when wastewater must be lifted from a lower elevation to a higher one. These systems often include a pump basin, one or more pumps, float switches, check valves, and a control panel.
Depending on the application, a lift station may use a sewage pump, grinder pump, or effluent pump. The term “lift station” refers more to the system design than to one specific pump type.
Lift stations are often used when:
Aerobic septic systems may use different pumps depending on the stage of treatment. An aerobic system often includes an air pump for oxygen delivery and may also include an effluent pump to move treated wastewater to a spray field or dispersal area.
Because aerobic systems involve more components than conventional systems, choosing the correct replacement pump is important for keeping the system operating properly.
Effluent pumps may also be described by performance style, such as standard-flow or high-head. A high-head effluent pump is built to push wastewater farther or higher, especially in systems with more elevation change or pressure demands.
A standard effluent pump may work well for short, simple applications, while a high-head model is often needed when wastewater has to travel a longer distance or overcome more resistance.
The right pump depends on several factors, including:
Using the wrong pump can shorten pump life, reduce performance, and create bigger system problems.
No matter what type of pump your system uses, there are common warning signs that may indicate trouble:
When these signs appear, it may be time to inspect the pump and related components.
Whether you need an effluent pump, sewage pump, grinder pump, or replacement components for a lift station, choosing the right product matters. Understanding the different types of septic pumps is the first step toward keeping your system working properly and avoiding unnecessary repairs.
Wholesale Septic Supply offers a wide range of septic and wastewater pump products for homeowners and professionals. If your system needs a replacement pump or an upgrade, selecting the correct type can help restore dependable performance.
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