A pump station that’s older doesn’t have to stop working in order for it become a source of concern. It could still transport the water and wastewater daily however, it struggles during high demand, require more frequent maintenance or rely on control systems that are getting harder to sustain. It might still function however, the original model of the equipment may not reflect current conditions.

Image credit: romtecutilities.com
For municipalities, developers, and facility owners, being aware that difference is an important aspect of preparing infrastructure improvements.
See beyond the equipment Failing
A wastewater lift station retrofit should begin with an assessment of the complete system, not simply the pump experiencing problems. Engineers must examine the wetwell, the mechanical equipment, as well as electrical parts. They should also look at discharge piping as well as current requirements for pumping.
The state of the wet well is of particular importance. It could be possible, if the structure is sound, to keep it and replace outdated equipment. The construction costs could be lower when compared to the construction of a new station. Retaining existing infrastructure is only worthwhile as long as it helps the planned improvements.
The area of service has been changed.
A wastewater station designed years ago may now serve other commercial or residential properties, homes or industrial processes.
These modifications could affect the rate of flow and operational needs. In order for lift stations to be properly rehabilitated, it’s not enough to return to original specifications. Engineers must evaluate the flow of current and anticipated flows in the system, the dynamic head of the equipment operating reliability, as well as the capacity.
The solution is not always a bigger pump. The new equipment must be compatible with the existing pipes as well as electrical power supply and control. In the event that one component is improved, it could cause problems in other areas.
The priorities for retrofitting stormwater systems are different
Retrofitting a stormwater pump station introduces additional considerations because the runoff may change drastically in response to rainfall and the development around. A station that is connected to an detention pond may have different patterns of inflow from those that receives water through storm drains. The changes in drainage infrastructure like new pavements or expanded parking lots, may affect the frequency and quantity of water able to reach the station.
Before recommending a proposed stormwater station upgrade, engineers should review the drainage area that is contributing to the project, expected peak flows storage capacity, discharge conditions and existing pump performance.
The information will help determine if the station needs to be reconstructed, or what the best option is to modernize equipment.
Plan Construction Before Interrupting Service
What the station’s capabilities will be in rehabilitation is a subject that is frequently left unanswered. In general, wastewater systems can’t be shut down without a plan to control flow.
Construction may include installing temporary bypass pumps or replacing infrastructure adjacent to the operational station.
The stormwater project also requires careful scheduling due to the fact that the system could be required during unplanned rain. A plan for engineering that is thorough should include installation sequencing, temporary operation as well as equipment integration and commissioning not only replacement parts.
Enhance the finished System Simpler to Use
Romtec Utilities provides site-specific engineering and supply solutions for wastewater and stormwater pumping needs.
The retrofit process evaluates the structural, mechanical, electrical, and communication components will remain, and which ones require replacement. The company also provides initial designs and budgetary estimates for owners to evaluate their project options.
After installation, the testing of startup the system, commissioning it, training for operators and maintenance documents help ensure that the newly upgraded station operates according to its design requirements. Operators need to be able manage and comprehend the system after a successful rehabilitation.
Upgrade the System, Not Only Its Age
An older pump station isn’t necessarily a candidate to be completely replaced. There is a chance that certain structures will remain functional for a long time even if the mechanical or electrical systems need modernization. The most important thing is to figure out what can be safely and efficiently retained while ensuring the station will meet present and future needs.
By looking at operating conditions, structural integrity, hydraulic requirements as well as construction constraints owners can make more informed investment choices.
The goal isn’t simply to make an old system operate again. In order to ensure that the system is prepared for future projects it’s essential to improve the station.