GRAF Australia
GRAF underground water systems installed for Australian commercial projects

Technical Solutions · Commercial pump stations

Commercial pump stations for stormwater, sewage, effluent and trade waste

Select a GRAF wet well or pump-out tank body, then configure pumps, pipework, valves, level controls and commissioning around the hydraulic duty.

Pump-out wet wells - stormwater and wastewater transfer

GRAF Carat pump-out wet well

GRAF Carat pump-out wet well

Process

Pump station system

Underground collection flows into a GRAF Carat or Sapphire pump-out wet well, where submersible pumps transfer water to the discharge header.

  1. 1Stormwater or wastewater flows to underground collection point
  2. 2GRAF Carat / Sapphire pump-out tank - pre-fabricated wet well with access cover
  3. 3Submersible pump, riser pipework and level controls
  4. 4Discharge to sewer main, irrigation or downstream treatment

Commercial and industrial pump station packages are quoted to project location and scope. Australia-wide supply pathways exclude Victoria unless confirmed for the specific works.

How the system works

From inflow to discharge

1. Collect

Wastewater or stormwater enters the selected wet well.

2. Store

Usable and emergency storage is established around the project inflow.

3. Pump

Pump type and quantity are selected from the hydraulic duty and fluid.

4. Control

Floats, level instrumentation and controls manage operation and alarms.

5. Discharge

Pipework and valves deliver flow into the rising main or receiving system.

6. Maintain

Commissioning and lifecycle support are considered from the start.

Choose the application

Stormwater

Basements, car parks, loading docks, warehouses, industrial yards and civil drainage.

Sewage

Commercial buildings, apartments, hospitality, schools, remote facilities and sewer lift applications.

Effluent

Treated wastewater, greywater, irrigation transfer and treatment-plant outlet pumping.

Trade waste

Application-specific commercial or industrial wastewater transfer where fluid compatibility must be reviewed.

Browse the Pump Stations catalogue for wet-well chambers, pump-out tanks and verified size data.

Wet wells and pump-out tanks

What we need to size the station

  • Project location
  • Design flow or inflow
  • Static head
  • Rising-main length and diameter
  • Pipe material, valves and fittings
  • Wastewater or stormwater type
  • Solids characteristics
  • Required storage
  • Available power
  • Control and BMS requirements
  • Site access, loading and groundwater information
  • Drawings and specification

FAQ

Does GRAF supply more than the tank?
Yes. The Pump Stations catalogue covers wet-well chambers and pump-out tank bodies. Commercial projects can also request coordinated pumping, controls and associated equipment through GRAF Australia.
Are commercial pump stations available nationally?
Project delivery, commissioning and field attendance are confirmed against the project location and scope. Share site details with the quote request.
Can GRAF review an existing pump schedule?
Yes. Upload the drawings, duty point and specification through the quote pathway on grafaustralia.com.au.

Size a commercial pump station

Send plans, required flow, head, rising-main details and site location.