![]() The biggest reason for failure is debris caught on the float. Although not required, it’s recommended to check periodically to make sure toilet paper and debris are not caught on the float. ![]() Ejector pumps do not need regular maintenance for continued operation. Sump pumps require regular maintenance for their upkeep, including cleaning the pump and sump basin. Sump pump failure can cause significant flooding and water damage. Some flooding can result from an ejector pump malfunction, though not typically as much as what results from a sump pump failure. Ejector pump failure can cause raw sewage to enter the basement which poses a health hazard inside the home and must be thoroughly cleaned. The difference between a sump pump and an ejector pump is the presence of sewage. The Differences Between Sump Pumps and Ejector Pumps The ejector pump has a discharge pipe that runs into the sanitary sewer line which carries waste to the municipal sewer or private septic tank. For ejector pumps handling greywater or processing wastewater with human waste, a vent pipe will be attached to the lid to allow for the venting of sewer gases. The ejector pump basin should be covered with a sealed lid. While a sump basin is usually open and you can see the pump down inside of it, it may also be covered with a lid. Grey water does not contain human waste but may contain particles of other matter washed down a drain, such as hair, food, cleaning products, and more. While the sump pump manages groundwater, the ejector pump moves wastewater from basement toilets and greywater from basement sinks, appliances, and floor drains uphill to the main sewer line. It can be easy to confuse sump pumps and ejector pumps, as both look similar and are situated within small basins on the floor of a basement. The sump pump activates to remove this water from the basin, pumping it through a drain line that discharges water outside of the home and away from the foundation, or it’s connected to a storm sewer. Groundwater that makes its way into the basement or crawlspace through the foundation flows to the lowest point where the sump basin is located, and the water collects within it. This pump sits above or within the sump basin, which is a cylindrical pit that extends at least two feet below floor level. What Is a Sump Pump?Ī sump pump is used to remove groundwater that has infiltrated the basement or crawlspace. In our most recent blog, B&W Plumbing, Heating, Cooling and Drains explains the differences between a sump pump and an ejector pump so you can better understand the purpose of these plumbing equipment. ![]() This is the sewer ejector pump, which has a different role – to move waste from basement bathrooms or other plumbing in a lower level up to the main sewer line. While sump pumps are fairly commonplace and have been used in homes for many years, some homeowners may notice a second pump installed nearby. Project Dewatering has a wealth of experience in the installation, monitoring, control and maintenance of these systems, ensuring drawdown requirements are met and sustained throughout the course of the dewatering process.Different types of pumps are installed in Indianapolis area homes, with each serving different purposes. Project Dewatering offers clients the choice of either a double pipe or concentric pipe ejector system to suit the site conditions.Įjectors require a greater level of experience to successfully operate than traditional wellpoint and deepwell systems, and can often require more regular maintenance, due to the loss of performance and efficiency caused by naturally occurring iron-related bio-fouling. Unlike electric submersible pumps – which can quickly burn out if run in a dry borehole – ejectors can pump air and water mixtures without any issues, and if the top of the borehole is sealed, then a vacuum produced by the pumping action will improve the gravity drainage towards the well as a result of the creation of the vacuum-assisted drainage path.Įjector systems require both a high-pressure supply and low pressure return header main following the line of wells. At depths greater than 45-50m, ejector systems can become inefficient, often making a vacuum deepwell system more appropriate.Įjectors occupy a niche in the dewatering industry, where pumping levels are too deep for wellpoints, but well yields are too low to allow the use of electric submersible pumps alone (as with classic deepwells).Įjector wells are drilled and installed, just like deepwells, but they differ from them in the way that the water is extracted. Where groundwater must be lowered more than six metres below ground in lower permeability soils, such as silt or fine sand, ejectors often offer the best dewatering solution. Technical information > What are Ejectors? ![]()
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