Waste Water Treatment Plants
Wastewater Treatment Plants, Pumping Stations & Electrical Controls
Need experienced electrical and pump support for a wastewater treatment plant, sewer pumping station or water infrastructure site?
We provide electrical, pump and control system installation, maintenance and fault-finding services for wastewater treatment plants, pumping stations and associated infrastructure.
As qualified electricians with extensive pump and control system experience, we can work across the complete system — from pumps, motors and electrical switchboards through to instrumentation, variable-speed drives, control panels and PLC-based control systems.
Whether you are dealing with an urgent breakdown, recurring fault, ageing equipment or planned upgrade, we can investigate the complete system and provide a practical solution.
Wastewater Treatment Plant Services
- Wastewater treatment plant electrical maintenance
- Electrical fault finding and repairs
- Pump installation and replacement
- Pump and motor fault finding
- Pump control systems
- Electrical switchboards and control panels
- PLC-controlled systems
- Variable-speed drives
- Soft starters
- Instrumentation and sensors
- Level control systems
- Pressure and flow monitoring
- Float switches and level transducers
- Contactors and motor protection
- Automatic control systems
- Duty and standby systems
- Alarm systems
- Control panel upgrades
- Electrical modifications
- Testing and commissioning
- Preventative maintenance
- Breakdown response
Pumping Station Repairs & Maintenance
PLC & Automated Control Systems
Modern wastewater treatment plants and pumping stations increasingly rely on PLC-based automation to control pumps, valves, aerators, level systems, alarms and treatment processes.
We can fault find and work with PLC-controlled systems as part of the overall electrical installation.
When a PLC-controlled system develops a fault, the PLC itself is not always the problem.
A failed sensor, damaged cable, incorrect signal, faulty relay, drive fault or field device can prevent the control system from operating correctly.
Our electrical and instrumentation experience allows us to trace signals through the system and determine whether the problem is within the field equipment, electrical controls, instrumentation or PLC system.
Electrical Control Panel Fault Finding & Repairs
Control panels are at the centre of most wastewater treatment and pumping systems.
We can fault find, repair, modify and upgrade electrical control panels containing equipment such as:
- PLCs
- Contactors
- Motor overloads
- Circuit breakers
- Control relays
- Safety relays
- Timers
- Power supplies
- Variable-speed drives
- Soft starters
- Motor starters
- Control transformers
- Level controllers
- Signal isolators
- Alarm equipment
- Operator switches and indicators
- Instrumentation equipment
Ageing control panels can become increasingly difficult to maintain as components become obsolete or unreliable.
Where appropriate, we can assess the existing panel and recommend repairs or upgrades to improve reliability and make future maintenance easier.
Pump, Motor & Drive Systems
Pumps and motors are a major part of wastewater infrastructure, and faults can originate from either the mechanical equipment or the electrical control system.
We can work on:
- Sewage pumps
- Wastewater pumps
- Stormwater pumps
- Transfer pumps
- Process pumps
- Irrigation and reuse water pumps
- Submersible pumps
- Centrifugal pumps
- Aerators
- Single and three-phase motors
- Variable-speed drives
- Soft starters
- Direct-on-line motor starters
This helps determine whether the fault is caused by the pump, motor, electrical supply, control equipment or process conditions.
Instrumentation & Process Controls
Reliable instrumentation is essential for automatic operation of wastewater treatment plants.
We can install, test and fault find instrumentation used to monitor and control treatment processes.
This may include:
- Level transducers
- Pressure transmitters
- Flow switches
- Flow meters
- Float switches
- Conductivity instruments
- Process sensors
- Analogue 4–20 mA signals
- Digital inputs and outputs
- Alarm signals
- Control relays
- PLC input and output circuits
Instrumentation faults can sometimes appear to be PLC, pump or process faults. By testing the signal from the field device through to the control system, we can help identify where the fault is occurring.
Variable-Speed Drives & Motor Controls
Variable-speed drives are commonly used throughout wastewater facilities to control pumps, aerators and other motor-driven equipment.
We can assist with:
- VSD fault finding
- Drive replacement
- Control signal testing
- Fault and run signals
- Motor protection
- Testing and commissioning
We also work with:
- Direct-on-line starters
- Soft starters
- Contactors
- Motor overloads
- Manual and automatic motor controls
Correct setup of the motor control equipment is important for both reliable operation and protection of the equipment.
Duty, Standby & Multiple-Pump Control Systems
Wastewater and sewer pumping stations often contain multiple pumps to provide redundancy and handle changing flow conditions.
We can work on control systems operating pumps in configurations such as:
- Duty and standby
- Duty rotation
- Alternating duty
- Duty and standby
- Duty rotation
- Alternating duty
We can fault find problems involving:
- Pumps failing to alternate
- Standby pumps not starting
- Multiple pumps starting incorrectly
- High-level conditions
- Failed level controls
- PLC sequence faults
- Control relays
- Motor starters
- VSD control
- Alarm systems
Reliable sequencing is particularly important in wastewater applications where failure of the control system can quickly result in high levels or an overflow.
Emergency Breakdown & Fault Response
Wastewater treatment plants and pumping stations cannot always wait until the next scheduled maintenance visit.
A failed pump, control system or electrical component can result in:
- High wastewater levels
- Pump station overflows
- Treatment process failures
- Environmental risks
- Equipment damage
- Plant alarms
- Loss of redundancy
- Disruption to site operations
We can respond to urgent electrical, pump and control system faults and work through the system to determine the cause of the problem.
Where an immediate permanent repair is not possible, we can assess whether a safe temporary solution is available to help maintain operation until replacement equipment or further repairs can be completed.
Have a wastewater plant or pumping station breakdown? Call us for urgent assistance.
Preventative Maintenance
Regular electrical and pump maintenance can help identify developing problems before they result in an unexpected breakdown.
Preventative maintenance can be tailored to the equipment installed at the site and may include:
- Pump operational checks
- Motor current measurements
- Electrical testing
- Control panel inspections
- Contactor and overload inspections
- Variable-speed drive checks
- Float switch testing
- Level instrument testing
- Alarm testing
- Duty and standby testing
- PLC input and output checks
- Automatic sequence testing
- Switchboard inspections
- Electrical thermography
- Checking for loose or deteriorating electrical connections
For critical sites, preventative maintenance can also help confirm that standby equipment and alarms will operate correctly when they are actually required.
Electrical Thermography for Wastewater Facilities
Electrical faults do not always provide an obvious warning before failure.
Thermal imaging can identify abnormal heating within electrical switchboards and control equipment that may indicate deteriorating connections or components.
As a Level 2 Certified Thermographer, we can provide electrical thermal inspections of suitable equipment within wastewater facilities.
Thermal inspections may assist with identifying issues involving:
- Electrical connections
- Circuit breakers
- Contactors
- ContactorsMotor starters
- Variable-speed drives
- Busbars
- Switchboard components
- High-load circuits
Thermography can form part of a preventative maintenance program and is particularly useful on equipment where an unexpected electrical failure could cause significant disruption.
Testing & Commissioning
After repairs, modifications or new installations, we can test and commission the system to ensure the equipment operates as intended.
Our focus is not simply on making an individual component operate — we aim to confirm that the complete system works together correctly.
Why Choose Us?
Experienced With Pumps & Pumping Systems
We have extensive practical experience working with pumps and pumping systems across wastewater, sewer, stormwater, irrigation and water applications.
This means we understand the relationship between:
- Pump performance
- System pressure and flow
- Motors
- Pipework
- Electrical controls
- Motor protection
- Level control
- Automated operation
That experience is particularly valuable when a fault could be caused by several different parts of the system.
Qualified Electricians
We are qualified electricians, allowing us to work on the electrical systems that control and protect wastewater equipment.
We can fault find and repair everything from the incoming electrical supply and motor circuits through to control panels, instrumentation, drives and PLC-controlled systems.
Rather than having one contractor look at the pump and another investigate the electrical controls, we can assess the complete pump and electrical system.
Experience With Electrical Controls & PLC Systems
Wastewater infrastructure often contains complex automated controls.
Our experience extends beyond basic pump wiring to include:
- PLC systems
- Automated pump controls
- Variable-speed drives
- Analogue and digital inputs
- Level and pressure control
- Motor control systems
- Alarm systems
- Control panel fault finding
This allows us to investigate faults across the entire control system and identify what is preventing the plant or pumping station from operating correctly.
Talk to Us About Your Wastewater System
Call Now
Have an urgent plant, pump station or electrical control fault? Contact us for assistance.
Request a Quote
Planning electrical upgrades, pump replacement, control panel work or preventative maintenance? Contact us to discuss the project.
Book a Site Inspection
Having recurring faults or unreliable operation? We can inspect the pumps, electrical equipment, instrumentation and control system to help determine the cause.