PRESSURE SEWER SYSTEM

Pressure sewer systems - Global Water

DrainAce Pressure Sewer Systems provide a practical alternative to conventional gravity sewer networks where deep trenching, difficult terrain, groundwater or high installation costs make traditional sewer infrastructure challenging.

Using a compact grinder pump station at each property, wastewater is transferred through a small-diameter HDPE pressure pipe network, reducing excavation requirements and allowing pipelines to follow the natural contours of the land.

The result is a reliable, cost-effective sewer solution that can lower civil construction costs, minimise site disruption and simplify network expansion.

 

PRODUCT INFORMATION

The DrainAce pressure sewer system provides an efficient wastewater solution for residential, commercial, and municipal developments. 

Each system consists of a grinder pump, polyethylene chamber, advanced control panel and alarm system, providing a reliable method of transferring wastewater through a pressure sewer network.

Available with multiple chamber sizes, pump materials and cover options, the system can be configured to suit a wide range of site conditions and project requirements.

DrainAce systems are supplied as complete solutions, ready for integration into new developments, network extensions and pressure sewer infrastructure projects. 

Why it makes financial and environmental sense:

  • Trench depth of 600 mm vs 3 m+ for gravity,  dramatically lower civil costs
  • No requirement for pipes to be laid at grade
  • HDPE pipe network can be installed alongside water mains by the same contractor
  • Eliminates groundwater infiltration into the network
  • Smooths peak flows — reducing required treatment plant capacity
  • Lower carbon footprint across construction and operation
  • Can be installed via directional boring with minimal surface disruption

Pressure sewer system components

Grinder pump

Two pump variants are available, both delivering identical hydraulic performance. 

Specification DrainAce Standard DrainAce Premium
Model GPGH32-110 GPGH32-111
Material Cast Iron 316 Stainless Steel
Weight 45 kg 40 kg
Recommended use Standard network conditions Aggressive soils and coastal environments
Maximum flow 50 L/min 50 L/min
Maximum head 50 m 50 m
Motor 1.1 kW/240 V 1.1 kW/240 V
Discharge 32 mm 32 mm

Chamber options

The pump is housed within a durable polyethylene chamber designed for underground installation.

Specification DAP 10P DAP09X
Dimensions Ø850 × 2160 mm Ø900 × 2065 mm
Capacity 1,050 L 900 L
High level alarm Included Included

Additional chamber sizes are available from 175 L to 10,500 L and can be found here.


Control panel

Each system includes a weatherproof control panel designed for reliable operation and simplified maintenance.

Feature Included
Local alarm indication ✔️
High level detection ✔️
Cycle counting ✔️
Clear fault indication ✔️
Telemetry connectivity options ✔️
Generator port option ✔️
Weatherproof enclosure ✔️
Industry standard components ✔️

Cover options

A range of cover configurations is available to suit site requirements.

Cover type Application
Non-trafficable General installations
Pedestrian rated Walkways and public access areas
Class B Light vehicle traffic areas
Class D Heavy-duty traffic areas

Certification approvals

Certification Status
AS/NZS 1546.1 Certified
SA Health Approved
NSW Health Approved

WORKING PRINCIPLE

1. Wastewater collection

Wastewater from a home, commercial building, or facility flows into an underground collection tank or wet well.

2. Storage and level detection

The tank temporarily stores the wastewater.

As the liquid level rises, float switches or level sensors monitor the volume.

3. Pump activation

When a preset level is reached, a grinder pump or solids-handling pump automatically starts.

The pump pressurises the wastewater and forces it into a small-diameter pressure pipeline.

4. Pressurised transport

Unlike conventional gravity sewers, the wastewater is pumped through the network under pressure.

This allows it to travel over long distances, uphill, around obstacles, or across challenging terrain.

5. Discharge to the sewer network or treatment plant

The wastewater is delivered to a gravity sewer, pump station, or directly to a wastewater treatment facility.

Once the tank level drops to a predetermined point, the pump switches off.

 

Key advantage

Because the system uses pressure rather than gravity, it can be installed in locations where conventional gravity sewers would require deep excavations, extensive trenching, or multiple lift stations.

 

APPLICATIONS

Global Water’s DrainAce Pressure sewer pump stations are designed for versatility, making them ideal for a wide range of wastewater applications, particularly where challenging site conditions make conventional sewer infrastructure difficult or costly to install.

They are well suited to sites with:

  • Rock, sandy soil, or high groundwater
  • Flat or undulating terrain
  • Coastal and island communities
  • Low-density or scattered lot developments
  • Heritage or built-up areas where excavation is restricted

DOWNLOADS

For pressure sewer pump station specifications, download the brochure.

DrainAce Pressure sewer pump stations brochure

FAQs

Do your tanks meet Australian standards?

Our polyethylene tanks comply with both ASNZ1546.1 2008 and AS3500. Our DrainAce concrete pump stations are compliant to ASNZ1546.1:2008 and are Department of Health approved.


Can you help me design a pump station?

Yes, our Sales and Estimating team can help you design a pump station based on your project specifications. Contact us at sales@globalwatergroup.com.au or 1300 145 622.

 

Estimated lead times & delivery

Product type Lead time Delivery (interstate) Delivery (local)
DrainAce Compact 1–2 days 5–7 business days transit 1–2 days
DrainAce poly 1–2 days 5–7 business days transit 1–2 days
DrainAce concrete 3–4 weeks 5–7 business days transit 1–2 days
EnviroLift concrete 10–12 weeks 5–7 business days transit 1–2 days
Fibreglass pump station 3–4 weeks 5–7 business days transit 1–2 days