Specialist farming equipment designers, manufacturers & repairers

“Product, knowledge and service ADDS UP to value”

67 Verdant Siding Road, BUNDABERG QLD 4670

Ph: +61 (7) 41 536 989

Fax: +61 (7) 41 536 489

Fertigation equipment

Project Information

The Add-G-Tator is an affordable mechanical agitator to mix gypsum, magnesium, fertilisers and chemicals for injection into irrigation systems. These fertigation tanks have been in manufacture now for over 10 years, and have sold over 500 units nationwide. Depending on your requirements, we can design your agitator to suit your application with any number of combinations of pumps, motors, speeds and capacities. Variable frequency drive (VFD) units are fitted as standard, to allow for maximum agressive agitation of non-dissolving products (e.g. micro gypsum) or minimum agitation of soluble products or chemicals. We are able to add on steps, operators’ platforms, overhead work lights, solar panels, secure/lockable control boxes and more. If you have an idea not listed you’d like to see on your agitator, speak to us and we would be glad to customise it to suit your requirements.


  • Available in 3 sizes, all with spherical tank bottoms to ensure easy agitation and complete drainage:
    • 1000L
    • 2000L (also available on a custom 6’x6′ trailer frame)
    • 5400L
  • Efficient mechanical agitation
  • Pump sizes: 5L/min up to 130L/min (fixed speed or variable speed flow rate)
  • Strong galvanised steel base with fork lifting capabilities
  • All in-tank components made of stainless steel
  • Industrial pump injection for high pressures – 10bar/150psi
  • Able to pump slurries and abrasives
  • Dry running capabilities
  • Extra large pump suction filtration
  • Single- or 3-phase motors
  • Solar-powered option available
    • 1000L & 2000L capacities
    • Redesigned with a smaller/ducted impellor producing efficient agitation
    • Deep cycle batteries: once charged, the unit can be operated at night
  • All units are complete and tested at time of despatch

Note: Only base and tank are drawn, as other accessories (e.g. stands, steps, etc) can change depending on requirements.


2000L agitator on trailer

1000L agitator with Honda pump

5400L agitator with platform