Site Installations


Morpeth STP
October 2000       Location: Morpeth, NSW

  • Scope: Design, facricate and install new 60 cubic meter silo and associated feeding equipment
  • Product: Hydrated lime
  • Feeder: Tomal 475





Gosford WTP
May 1999 Location: Gosford, NSW

  • Scope: Design, fabricate and install replacement 20 cubic meter intermediate hopper plus associated feeding equipment below existing main silo
  • Product: Hydrated lime
  • Feeder: Tomal 626 dual outlet feeder with 2 x Tomal Type 150 screw conveyors for pre and post dosing






Longford WTP

September 1999      Location: Longford, Tasmania

  • Scope: Design, fabricate and install new 75 cubic meter silo and associated feeding equipment
  • Producty: Hydrated lime
  • Feeder: Tomal 626 dual outlet for pre and post dosing





Dubbo WTP

September 2007      Location: Dubbo, NSW

  • Scope: Design, fabricate and install new 17 cubic meter solo and associated feeding and metering equipment
  • Product: PAC, 3.3-100kg/hr
  • Feeder: Tomal 405 feeder with Type 480 wetting cone and ejector
  • Fabrication and Installation by John Leaver Engineering Services, St Marys, NSW






Mt Stromlo WTP

January 2003      Location: Mt Stromlo, ACT

  • Scope: Supply standard Tomal PolyRex 3.0 with oversized (5000 litre) rectangular dosing tank
  • Product: Polyelectrolyte powder, 6.4kg/hr
  • Feeder: Tomal 182P with Type 300 wetting cone and ejector
  • Rectangular tank fabrication by John Leaver Engineering, St Marys, NSW






Coffs Harbour WTP
July 2008      Location: Coffs Harbour, NSW

  • Scope: Design, fabricate and install replacement silo cone and associated feeding equipment
  • Product: Hydrated lime, 2 x 10-100kg/hr
  • Feeder: 2 x Tomal 405 (duty/standby) with Tomal Type 150 Screw Conveyors
  • Fabrication and Installation by John Leaver Engineering Services, St Marys, NSW




Rushworth Road WTP
September 2008      Location: South Grafton, NSW

  • Scope: Design, fabricate and install new 80 cubic meter silo and associated feeding equipment
  • Product: Hydrated lime
  • Feeder: Tomal 475 with Tomal Type 150 Screw Conveyor
  • Fabrication and Installation by John Leaver Engineering Services, St Marys, NSW




Orica WWTP
January 2006      Location: Botany, NSW

  • Scope: Design and manufacture 1 cubic meter bulk bag support system with associated feeding and solution preparation equipment
  • Product: Microsand, 64kg/hr
  • Feeder: Tomal 302
  • Bulk bag frame fabricated by John Leaver Engineering, St Marys, NSW,






Tarago WTP
September 2008 Location: Drouin West, Victoria

  • Scope: Design, fabricate and install new 100 cubic meter silo and associated feeding equipment
  • Product: Hydrated lime, 2 x 1-33kg/hr
  • Feeder: Tomal 626 dual outlet feeder with 2 x Tomal Type 150 screw conveyors for pre and post dosing
  • Fabrication and Installation by John Leaver Engineering Services, St Marys, NSW




Coffs Harbour WTP
May 2009      Location: Coffs Harbour, NSW

  • Scope: Supply remote 1 cubic meter bulk bag unloader with 2 cubic meter intermediate hopper and associated feeding and dosing equipment
  • Product: PAC, 2 x 5-25kg/hr
  • Feeder: Tomal 626S dual, outlet feeder with Type 480 wetting cones and ejectors
  • Tomal standard package




Northern, Southern, Edmenton and Marlin Coast STP's
February 2009      Location: Cairns, Queensland

  • Scope: Design, fabricate and install  4 new 40 cubic meter silos and associated feeding equipment
  • Product: Hydrated lime, 3-28kg/hr
  • Feeder: Tomal 475 with Tomal Type 150 screw conveyor and Type 480 wetting cone
  • Fabrication and Installation by John Leaver Engineering Services, St Marys, NSW






Kincumba aand Woy Woy STP's

February 2010      Location, Kincumba and Woy Woy NSW

  • Scope: Fabricate, 2 x Tomal PolyRex 5.4 with integrated 3 cubic meter hopper
  • Product: Polyelectrolyte powder, 12kg/hr
  • Feeder: Tomal 182P with Type 300 wetting cone and ejector
  • Hopper fabrication and assembly by John Leaver Engineering, St Marys, NSW