The process would be easier if the water came exactly at the same time.

It’s not.

The amount of water that enters a residential water system can change throughout the day. Industrial and commercial facilities can be experiencing operating peaks. The conditions for stormwater can drastically change depending on the weather. Clean-water demand also rises and decreases depending on the usage.

As a result, designing a pump station isn’t simply the matter of identifying a flow amount and then selecting the equipment that can meet it. Engineers should be aware of possibilities of the conditions in which the equipment will be used.

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Consider operating conditions, Not Just Maximum Capacity

The maximum flow is important, but this is only one aspect of the station’s operations. Imagine a wastewater system has been designed to handle a flow. Most of the time the flow coming in can be significantly less. In these instances it is necessary for the station to be operating properly.

This leads to questions on wet-well size, pump operation, controls, head conditions, and how the equipment will respond as demand changes.

The design of a properly engineered package pump system takes into account the needs of the location, rather than focusing on the maximal capacity of the pump.

The cycle of water that runs throughout the day

A wastewater lift station serving homes, businesses, or municipal infrastructure may experience changing influent conditions throughout its operating cycle.

The station’s control strategy will determine how the system manages the collection of wastewater and its pumps. This process involves design and dimensions of the structure and pumping gear, valves and piping as well as electrical components.

The design may also include factors specific to the area. Romtec Utilities will incorporate any auxiliary systems, such as grinders, vaults and odor control devices as needed. This results in a station that is designed specifically for the particular project, instead of being a standard design that is applicable to all wastewater sites.

Stormwater is able to change significantly faster

Stormwater is a distinct operation. A stormwater system can be quite quiet during dry weather, but experience a large inflow of water when there is a significant weather storm. Stations are often a part of bigger flood control techniques, such as detention or treatment thus the stormwater strategy is an essential element of the design of the system.

Romtec Utilities evaluates factors including required flow rates along with head conditions, size of the system, site requirements, and environmental aspects when designing the systems.

The layout of a station used for commercial purposes could be quite different from that of a station created to handle stormwater for the municipal system.

Head conditions are important along with Flow

Engineers should also be aware of what direction the water is heading and what resistance they will be able to overcome. Engineers must be aware of the direction of this water and how much resistance they will face.

Changes in elevation, piping configuration as well as discharge conditions and other aspects of the system affect the head conditions in which pumps function.

That relationship between flow and head is the reason why choosing an appropriate pump based upon a capacity rating doesn’t suffice. The pump technology and station configuration should match the hydraulic requirements of the entire application.

Design for the Conditions the Station will Experiece

Romtec Utilities creates customized pumping system for wastewater, stormwater and clean water applications. They also design systems designed for industrial, booster and other purposes. The process may include preliminary design and budgeting, complete plan sets as well as documentation starting, testing and commissioning.

The principle of engineering that underlies it is straightforward: real pumping systems don’t live their entire lives working under one suitable set of circumstances.

They have to contend with changing flows, changing demands, and project-specific hydraulic needs. This reality must be taken into consideration when designing a station that is successful.