The construction would be simpler if water was flowing at exactly the same speed.
It’s not.
The quantity of wastewater flowing into the residential system fluctuates throughout the day. Commercial and industrial facilities could experience peak operating times. Conditions for stormwater may drastically alter according to the weather. The demand for clean water can also increase and decreases based on the nature of the application.
It’s not enough just to choose equipment that will provide a certain flow when designing a pumping station. Engineers must be aware of the different conditions that the system may be used.

Image credit: romtecutilities.com
Consider operating conditions Think in Operating Conditions, Not just Maximum Capacity
The maximum flow is important however it’s just part of the process. Imagine that a wastewater treatment system was created to handle a large maximum flow. In most cases the flow that enters it could be significantly less. The station is still required to function properly during these normal times.
This raises concerns about wet-well dimensions the pump’s operation and controls and head conditions as well as how equipment will react to changes in demand.
A properly engineered package pumping system brings these considerations together around the actual requirements of the site instead of treating maximum pump capacity as the entire design objective.
Everyday, the Wastewater System has its own Rhythm
In the life-cycle of a wastewater lift station, influent conditions can change.
The station has to have an appropriate control system that permits the system to start the pumps, and also collect water. The structural dimensions, pumps, valves pipes, electrical components and controls play a role in this process.
Other considerations specific to the location could affect the design. Romtec Utilities is able to incorporate auxiliary equipment such as grinder vaults or odor control equipment, depending on the specific application. It is more cost-effective to design a station around a specific project rather than implementing the same configuration for each wastewater site.
Stormwater Changes Much More Fast
Stormwater is a distinct operation. The stormwater stations can be relatively quiet during dry conditions, but then see a massive inflow of water when there is a significant weather event. Stations may be part of bigger flood control, detention or treatment strategies and therefore the stormwater plan is an important component of system design.
When constructing these systems Romtec Utilities considers a variety of elements, including the flow rate that is required and head condition, the system size, needs of the site and environmental factors.
Stations that serve commercial developments could look very different than the ones designed for municipal stormwater applications.
Head Conditions Matter Along With Flow
The challenge of moving 1,000 gallons is not the only problem for engineering. Engineers must know the direction of this water and the amount of resistance they will face.
Pumps are able to operate at different levels of head based on the configuration of the system, including the piping and discharge conditions, for example.
This relation between head and flow is yet another reason why selecting one’s pump purely based on its rating isn’t enough. The design and technology of the pump must be in line with the hydraulic requirements of the particular application.
Plan for the conditions that the station will experience
Romtec Utilities creates customized pumping system for stormwater, wastewater and clean water systems. They also develop systems designed for industrial, booster and other uses. The procedure may involve preliminary design and budgeting, complete plan sets as well as documentation starting, testing and commissioning.
The concept behind this design is straightforward pumps don’t need to be able to operate for their entire life under the same set of conditions.
They must contend with shifting demands, flows and specific hydro requirements for projects. This must be taken into account when designing a successful station.