When a Lift Station’s Electrical System Becomes the Limiting Factor

A pump station that is aging isn’t required to shut down before it’s a problem. It could still transport water, or even stormwater, every day and yet be unable to cope with periods of high demand, need frequent maintenance or rely on controls that are becoming increasingly difficult to maintain. The equipment functions, however its original design might no longer reflect the conditions around it.

Image credit: romtecutilities.com

The planning of infrastructure improvements is crucial for municipal officials, developers and operators of facilities.

The Equipment that Fails isn’t the sole issue

A wastewater lift station retrofit should begin with an assessment of the complete system, not simply the pump experiencing problems. Engineers should examine the wetwell and mechanical components along with electrical components, controls, drainage piping as well as the current requirements for pumping and control systems.

The condition of a wet well is extremely important. It could be possible, in the event that the structure is sturdy in its current condition, to maintain it and also replace old equipment. It can be less expensive to build the new station than you were to keep the existing one. It is essential to maintain existing infrastructure if the improvements are possible.

The area of service has been changed.

The wastewater plant that was constructed many years ago can be used to provide services to many more households, businesses and industrial facilities.

These modifications can influence flow rates and operational demands. To ensure that lift stations are successfully rehabilitated, it is not enough to return to original specifications. Engineers should assess flow rates, anticipated and current flows, total dynamic head equipment capacity, operating reliability.

A bigger pump isn’t necessarily the answer. The new equipment should be compatible with existing piping as well as electrical power supply and control. If you make improvements to one part, it can cause problems with other parts of the system.

The priorities for retrofitting stormwater systems are different

Retrofitting a stormwater pumping station brings additional considerations, as the runoff patterns are affected by rainfall as well as nearby development. The flow pattern of stations that serve a detention area may differ from one that is receiving water directly through the storm drain. The amount of runoff that reaches the station can be affected by new pavements as well as increased parking or the alteration of drainage infrastructure.

Before recommending an upgrade to a stormwater facility, engineers must analyze the drainage areas contributing to the stormwater system and peak flows anticipated as well as the capacity of storage available and discharge conditions, as well as pump performance.

These findings will help to determine whether modernization of equipment is sufficient or if a facility requires more extensive reconstruction.

Plan your construction before you cut off service

The operations of the station in rehabilitation is frequently ignored. It is impossible to close down the wastewater systems without making arrangements for flow management.

Construction can include temporary bypass pumps, or the installation of new infrastructure along with an operating station, in accordance with the space available and the needs of the project.

It is also essential to think ahead about stormwater-related projects because the system might be needed in unexpected rainstorms. An engineering strategy that is comprehensive should be able to address installation sequence, temporary operations, the integration of equipment, and commissioning, not just the replacement components.

The Finished System is more user-friendly

Romtec Utilities offers site-specific engineering solutions and equipment for stormwater and wastewater pumps.

Its retrofit approach evaluates which structural, mechanical, electrical and communication components can remain and which require replacement. The company also provides initial designs and budgetary estimates for owners to evaluate their project alternatives.

After installation, the tests of startup, commissioning and operator training are important to ensure that the upgraded station is performing according to its design. The successful rehabilitation process should provide operators with a system they are able to maintain and understand.

Upgrade Your System and Not Limit Its Upgrades to its Age

It’s not necessary to upgrade an old pump station. It is possible that some structures will be functional for many years, even if the mechanical or electrical systems require modernization. It is important to determine what can be kept safely and economically while ensuring that the station’s finished product will meet future and current needs.

Through analyzing the general operating conditions and structural integrity and the construction and hydraulic requirements limitations, the owners are able to make better informed decisions.

It’s not just about making an old station functional again. The goal is to ensure that the updated system can cope with the new demands.