A pump station that is not in good condition doesn’t necessarily need to stop working in order for it become a cause for concern. The pump station might be able to transport water or wastewater throughout the day but struggle when the demand is high, require regular maintenance or rely on controls that are challenging to maintain. The equipment works, but the design it was originally designed for may no longer reflect the conditions around it.
Understanding this distinction is crucial for municipal officials, developers and facility managers in planning upgrades to infrastructure.
Image credit: romtecutilities.com
Take a look beyond the equipment that’s Inoperable
Retrofitting a wastewater lift station should start with an examination of the entire system, not just the pump that is experiencing difficulties. Engineers should evaluate the wetwell, mechanical equipment and electrical parts. They should also consider discharge piping and current requirements for pumping.
The condition of a wet well is crucial. If the wet well’s structure is sound then you might be able to upgrade it with new equipment while keeping its existing structure. Costs for construction could be reduced when compared to the construction of a new station. However, the idea of preserving the existing infrastructure is only a good idea when it can support the enhancements that are planned.
The service area has changed.
The wastewater facility that was constructed many years ago can be used to serve many more households, businesses as well as industrial processes.
These modifications could affect the flow rate and operating needs. Successful lift station rehabilitation therefore requires more than restoring the original equipment specifications. Engineers must evaluate future and planned flows, as well as the equipment’s capacity and performance.
It’s not enough just to buy a bigger pump. New equipment needs to work with the existing system of piping Wet wells, wet wells and electric supply, controls and more. If you modify one of the components there is a chance that it will cause issues with other parts of the system.
Stormwater retrofits may have different priorities
Retrofitting an existing stormwater pumping station could result in additional challenges due to the fact that runoff is influenced by surrounding development and rain. Stations serving a detention basin may differ in their flow patterns from those receiving water through storm drains. Changes in drainage infrastructure, such as new pavement or larger parking lots, can affect the frequency and quantity of water that’s allowed to flow into the station.
Before recommending an upgrade of a stormwater pumping station, engineers should examine the drainage area that is contributing to it. They must also look at the anticipated peak flows storage capacity, discharge conditions.
These results help determine if modernization of equipment is enough or if the station is in need of larger reconstruction.
Plan Construction Before Interrupting Service
A common issue that is not addressed is how the existing station will be operating during rehabilitation. It is not possible to remove wastewater systems from operation without having arrangements in place for flow management.
The construction could include temporary bypass pumps or installation of replacement infrastructure along with the operating station, dependent on the available space and the needs of the project.
The system may be needed in the event of an unexpected downpour. A design plan that is complete should contain the sequencing of installation, temporary operation installation, equipment integration and commissioning not only replacement parts.
The final System is simpler to operate
Romtec Utilities offers site-specific engineering solutions and equipment for stormwater and wastewater pumps.
Retrofitting is a method that evaluates structural, mechanical, electric, and communications components to determine which components can be left in place and which need to be replaced. The company also offers initial designs and budgetary estimates to help project owners assess their alternatives.
After installation, the tests of startup testing, operator training and commissioning are crucial to ensure that the upgraded station is performing according to its design. The successful rehabilitation projects will ensure that operators have a simple to maintain system.
Make sure you upgrade your computer, not only the system that is old
A pump station that is older may not need to be replaced completely. It’s possible that some structures will be functional for a long time even if the mechanical and electrical systems need modernization. It is crucial to decide the things that can be maintained safely and economically, while making sure that the final product will meet future and current needs.
By looking at operating conditions, the structural strength, hydraulic requirements and construction constraints together owners can make better informed investment choices.
The aim isn’t just to make an old station function again. It’s to make sure the system that has been upgraded is properly prepared to handle the challenges ahead.