These wastes can accumulate, spilling sewer gas and your waste, which no one wants.įor homes that are completely placed above the sewer lines, an ejector pump will not be necessary. Without an ejector pump, the waste will get backed up, causing a health hazard to your home. If your home or parts of your home are situated below your sewer pipes, you need an ejector pump. This means that the pump is often way more powerful than a sump pump and comes with a grinder to breakdown the waste before ejection. Ejector pumps are designed so that they can handle water and solid waste.
One important distinction between ejector pumps and sump pumps is what they can handle. The pump will grind the waste so that it can easily flush into the sewage line. The pump will also be designed to activate if a certain amount of waste accumulates in the basin or home. The ejector pump is activated every time you flush your basement toilet or run your washing machine. Since ejector pumps deal with solid waste, the basin will be sealed so that sewer gases don’t escape into your home. The ejector basin will collect the wastewater and pump it to the sewer line. How It Worksįor an ejector pump to work, it will be installed under the basement floor. As the name suggests, ejector pumps quite literally eject the waste out of your home and into the sewer pipes. This is especially true if the waste is produced below the sewer pipes. The point of an ejector pump is to pump waste or black water out of your home. This is where an ejector pump comes into play. As a result, any bathroom in the basement needs help expelling the waste since gravity can’t force it down. However, not all homes are able to be designed above the sewer pipes.īasements, for example, may be situated below the sewer pipes. This allows waste to drain properly on its own due to gravity. In other words, the home is situated so that way it is higher than the sewer pipes. Most homes rely on gravity to get rid of waste. This article provides an extensive overview of both ejector pumps and sump pumps, as well as gives you recommendations for the best models of both. To find out more about the differences between these two pump types, read on. Since these two pumps have different functions, using them interchangeably will result in a lot of issues for your home. In short, an ejector pump is designed to pump waste to sewer pipes, while sump pumps are designed to protect basements from flooding. Despite the fact that these two pumps are frequently used in basements, they are not interchangeable and serve completely different functions. They often conform to ASME/ANSI B16.5 standards, a set of guidelines from the American Society of Mechanical Engineers (ASME) and the American National Standards Institute (ANSI).If you have a basement or your home is built below ground level, you’ve likely heard of both an ejector pump and a sump pump. Specificationsįor both types of gas-based eductors, specifications include:įor eductors that use compressed liquid, specifications include:Įductors are used widely in petrochemical, material processing, and power generation applications. Sizing involves a determination of the amount of time required to reduce the pressure to a specified lower level. Evacuating eductors remove gases from a vessel by decreasing the tank’s volume. In some cases, the introduction of a reactive, motive fluid can be used to remove a gas’s undesirable characteristics. These devices are often used to remove smoke from welding areas and to inject oxygen into liquid streams. Exhausting eductors remove the gas at a continuous rate while maintaining a stable pressure. There are two basic technologies for eductors which use compressed gas: exhausting and evacuating. Eductor nozzles are usually made of stainless steel. Often, eductors are made of polytetrafluoroethylene (PTFE), a fluorinated thermoplastic with outstanding chemical resistance and excellent lubricity. Mixing occurs in the diffuser and the motive fluid is released through an exhaust port. The subsequent discharge of the stream then creates an area of low pressure that draws in the contents of the suction chamber.
The movement of this stream through a tapered tube and Venturi nozzle increases the pressure of the flow. FeaturesĮductors use the kinetic energy from a stream of compressed gas or liquid. Because they do not require electricity, eductors can be used in hazardous environments. Because eductors are non-mechanical, they do not include moving parts or require lubrication. They are sometimes called aspirators, Venturi pumps, or jet pump ejectors. Eductors are used to lift, pump, mix, and agitate liquids, granular solids, and slurries.