Post: Stormwater Pump Stations Face a Different Kind of Aging Problem

An aging pump station does not have to cease operation before it causes problems. Even though it is able to transfer stormwater and wastewater every day however, the pump station could struggle to meet the demand for water at its peak. It may also require more frequent maintenance. While the equipment remains being used however, the design it was originally designed for may no longer be appropriate for the current climate.

The importance of recognizing this difference is for municipal officials, developers and facility managers in planning improvements to infrastructure.

Image credit: romtecutilities.com

See beyond the equipment Not Working

The retrofitting process of a wastewater lift station should start by evaluating the entire system, and not only the pump. Engineers must evaluate the wetwell as well as mechanical and electrical components. They should also look at discharge piping as well as the needs of current pumping.

The condition of a well is vital. If its structure is solid it is possible to retain it as a replacement for outdated equipment. This may reduce the need for construction when compared to building a completely new station. Retaining existing infrastructure is only worthwhile when it is in line with the improvements being proposed.

Did the area of service change?

An old wastewater facility could be serving additional houses, industrial buildings, or commercial buildings.

The changes could impact the rate of flow and operational requirements. Rehabilitating a lift station successfully will require more than just restoring original specifications of the equipment. Engineers must evaluate future and planned flow rates as well as the equipment’s capacity and performance.

The solution is not always a bigger pump. The new pump must be compatible with existing piping, electrical supply and controls. When one part is upgraded it could cause issues with other components.

Stormwater Retrofits Have Different Priorities

A stormwater pump station retrofit introduces additional considerations because runoff can change dramatically with rainfall and surrounding development. The flow pattern at stations that serve a detention area may differ from one that gets water directly from the storm drain. The amount of runoff that gets to the station could be affected by new pavement in addition to parking space, or altered drainage infrastructure.

Before recommending a major upgrade of the stormwater facility, engineers must look over the drainage areas as well as the expected peak flows as well as the capacity of storage available as well as discharge conditions and the pump’s performance.

The data will allow you to determine if the station requires to be reconstructed or if the modernization of equipment is enough.

Design the Construction Before Interrupting Service

What the station’s capabilities will be in the event of rehabilitation is a concern that is frequently left unanswered. The general rule is that wastewater systems can’t be shut down without a strategy for flow management.

Construction can involve installing temporary bypass pumps or relocating infrastructure that is adjacent to the operating station.

Stormwater projects also require a careful planning because the system may require maintenance during rain events that are unexpected. An engineering plan that is comprehensive should include installation sequencing, temporary operations, equipment integration and commissioning as well as replacement components.

Making the system more user-friendly to use

Romtec Utilities is a provider of engineering services for sites supply and solutions for Stormwater and Wastewater Pumping Applications.

The retrofit process evaluates the structural, mechanical, electrical and communication components will remain, and which ones require replacement. The company also provides initial plans and estimates for budgets for owners to evaluate their project possibilities.

After installation, testing the startup Commissioning, operator training as well as operation and maintenance documents help ensure that the upgraded station performs in accordance with the specifications of its design. Successful rehabilitation projects should give operators a simple-to-maintain system.

Upgrade Your System, Not Only the Age

It’s not required to replace an old pump station. Even if electrical and mechanical equipment is outdated there are some structures that can be useful for many years. It is crucial to determine the elements that can be efficiently retained while ensuring the station meets current and future demands.

Owners are able to make better investment choices by looking at the operating conditions along with structural integrity, hydraulic and requirements together.

It’s not about just making an old station work again. In order to ensure that the system is prepared for future projects it is essential to modernize the station.