The Simplex Pressure Sewer System
Designed for use across single residential dwellings & light commercial applications, featuring moulded inlet stubs for easy on-site connections.
Polyethylene Chamber & Domed Base
Engineered with a unique domed base, the Simplex Chamber empties each cycle to deliver a seamless, odour free operation.
IP68 Rated Pumps & Level Controls
Featuring a fully submersible single pump with level control, the Simplex System is fail-safe & rated IP68 for the highest levels of protection.
16 Bar Rated Pipework
16 Bar Rated flexible pipework handles up to 160 metres of pressure, providing added safety protection against burst pipes & leaks.
SAFE Cover
Low profile polyethylene covers blend into surrounding environments & feature a child-safe locking mechanism for homeowner protection.
Simplex Pressure Sewer
The Simplex System features an industrial grade, single pump configuration for residential or light commercial applications.
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Aquatec takes a customised approach to the design of Pressure Sewer Systems based on practical requirements and site conditions. Market leading pumps, chambers, control panels, telemetry, reticulation items and accessories are customised to deliver energy efficient, environmentally friendly sewerage systems for the long-term.
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ACCREDITATIONS ISO9001: 2008 Accreditation Designed to comply with AS/NZS1546.1:2008 NSW Health Certificate of Accreditation |
SA Health Certificate of Accreditation NT Government Department of Health and Families |

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Pressure Sewer Systems to your exact requirements. Enquire now
Why Choose Pressure Sewer?
Pressure Sewer Systems are one of the most economical & environmentally friendly sewerage systems on the market today. Suitable for both existing septic backlog areas & greenfield sites, Aquatec’s Pressure Sewer Systems will operate effectively across any terrain.
Pipe Network
Aquatec’s Pressure Sewer Systems deliver a network of fully sealed sewer pipes fed by a grinder pump located at each property.
Remote Control
Our OmniSmart Control System enables remote monitoring and analysis of trends in real time across desktop, mobile or cloud devices via your SCADA Platform.
Processing
Market leading chambers contain IP68 rated pumps, grinding solids in the wastewater to a fine slurry for treatment plant processing.
Boundary Connection
Boundary Connection Kits (BCK) provide a means of isolation at the property boundary.
Delivery
The slurry is pumped through small diameter pipes from the house to the main, and the main to the treatment facility.
System Design

Government & Industry Bodies regularly consult with Aquatec for guidance on best practice product development & safety standards.
Design & Drawing Services
Aquatec’s Design and Drawing Services deliver a full set of drawings inclusive of chamber size, system configuration, hydraulic calculations, storage requirements and layout solutions.
Expert guidance across Australian Standards, WSAA and WHS regulations together with recommendations on the latest global innovations combine to deliver a customised solution for the long-term.
Click here to request our Pressure Sewer Design Software.
Hydraulic Design
Aquatec’s Hydraulic Engineers specialise in the development of efficiencies across sewer lines to rising mains.
Recommendations on pipe sizing, calculation of friction, velocity, retention times, air release requirements, number of pumps operating and average daily use per dwelling are modelled on our extensive research probabilities.
Click here to complete our Pressure Sewer Project Survey Sheet.
Reticulation Layout
Aquatec works together with Water Authorities, Councils, Consultants and Engineers to develop reticulation solutions that minimise disruption to existing services, streetscapes, residents and the environment, while achieving best practice design and delivery throughout the network.
On-Property Design
Aquatec’s approach to On-property Design determines strategic placement of Pressure Sewer units.
Combined with close consultations with householders our designs minimise environmental disturbance, while introducing cost effective excavation procedures and most practical location to existing services.
Product Integrity

For the past 30 years, product integrity has remained central to our daily operations. As industry leaders, our products are engineered to safeguard against environment leaks & spills.
Product Integrity
Aquatec consistently delivers a superior level of product quality through advanced manufacturing processes and strict quality control measures.
Manufacturing Process
Aquatec’s Pressure Sewer Systems are manufactured in a controlled factory environment under strict ISO 9001:2008 and SAI Global standards. Proprietary designs are pre-moulded to exact specifications, stringently tested and certified prior to delivery.
Finite Element Analysis
Finite Element Analysis (FEA) ensures Aquatec’s designs comply with AS/NZS 1546.1:2008 and AS/NZS 4766.1:2006, providing guaranteed performance against changing ground pressures and depth variations.
Quality Control
- Computer modeling
- Finite Element Analysis
- Controlled factory conditions
- Computerised winders for controlled wall thickness (fibreglass)
- Checklists / hold points
- Third party Engineer’s certificates
- Transportation
- Installation audits
- Testing of chambers to AS/NZS standards
- Testing and result recording of each pump
Environmental Benefits
Since the introduction of Pressure Sewer technology to the Australian market, Aquatec has played a pivotal role in replacing septic tanks with sealed Pressure Sewer Systems.

Reduced Excavation Periods
Aquatec’s pre-engineered Pressure Sewer Systems are delivered on-site as a complete unit for immediate installation, reducing the period of excavation required and minimising disruption to surrounding flora and fauna.
Carbon Footprint
Our systems can be delivered to site, installed, connected and commissioned within an 8 hour time period, heavily reducing C02 emissions associated with prolonged periods of excavation and installation.
Aerated Treatment
For ongoing odour reduction, Aquatec’s pumps incorporate an anti-syphon valve for offloading a small, steady stream of effluent back into the chamber to aerate effluent in the tank.
Moulded Inlet Stubs
Aquatec’s Pressure Sewer chambers are engineered with Moulded Inlet Stubs to provide a guaranteed seal between the chamber and inlet pipes. Flexible coupling joins connect pipes from plumbing connections to the chamber, eliminating the need for on-site drilling into chambers and rubber seals prone to environmental leaks and spills.
Accredited Training
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Accredited Training sessions are ideal for contractors, existing personnel in need of additional assistance,
or new personnel -
Our training sessions are delivered by experienced staff and supported by comprehensive training and installation manuals. Presentations and testing scenarios demonstrate the knowledge and skills required to maintain product integrity for longer life.
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Installation Training
Cover safe and effective practices for installation, from excavation procedures to the final commissioning process.- Excavation and location guidelines
- Tank installation
- Electrical cabling & conduits
- Pipe fittings & connections
- Control Panel connection
- Concrete ballast
- Level Control installation
- Commissioning Process
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Operational Training
Aquatec’s Operational Training sessions cover how to interpret, monitor and trouble shoot the network for whole of life operational efficiency.- Operation of the system
- Monitor levels & alarms
- Reading & understanding signals
- Pump monitoring
- Level control checks
- Pump valve & amp monitoring
- Ongoing pulse checks
- Remote monitoring
- System management
Simplex - Pressure Sewer
Aquatec also manufactures alternative, dual and triple pump Pressure Sewer Systems to specification.
Related Products
![]() Enviroplex |
![]() Duplex |
![]() Triplex |
Optional Accessories
Aquatec offers a wide range of Optional Accessories to meet or improve on your project specifications.
Our Technical Consultants make recommendations for enhancements to your Pressure Sewer System based on budgets and the unique demands of your application.
Key Optional Accessories include:
- Full Range of Custom Chambers
- External Storage Vessels
- Service Trailer
- Access Covers
- Odour Controls
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Pump Lifting Trolley
After Sales Service
Service Warranty
Aquatec are committed to providing full after sales service, support and long term warranties on all components and workmanship.
Technical & Product Support
Aquatec's Technical and Product Support Service responds to any product or technical enquiry, including recommendations on safe use of our products. Call 1300 088 555.
System Maintenance Management
Aquatec’s nationwide network of Accredited Maintenance Providers cover urban and rural areas with a same day response policy. Where system faults or maintenance issues arise, our call centre identifies the closest maintenance provider to streamline delivery and minimise cost for Councils and Water Authorities.
Power Failure Logistics
Aquatec’s Power Failure Logistics service identifies issues across the network post power failure. Our Technical Consultants stage start-ups based on emergency overflows and user demands, providing an active management solution for treatment plants, Councils and Water Authorities
Specifications
Models | Litres (nominal) | Diameter | Depth | Depth to Inlet (max) |
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PSS900 | 900 | 1.2m | 1.45m | 0.9m |
PSS1100 | 1100 | 1.0m | 1.6m | 1.1m |
PSS1500 | 1500 | 1.0m | 2.2m | 1.7m |
PSS3000 | 3000 | 1.5m | 2.2m | 1.7m |
PSS5000 | 5000 | 1.5m | 3.0m | 2.4m |
PSS7500 | 7500 | 1.85m | 3.0m | 2.4m |
PSS10000 | 10000 | 2.2m | 3.0m | 2.4m |
PSS15000 | 15000 | 2.5m | 3.5m | 2.9m |