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

Agitator Fertigation Tanks

Frequently Asked Questions

What are the common sizes of fertigation tanks and how do I determine the appropriate size for my specific application?

At Adds up Engineering, we specialize in providing high-quality fertigation tanks that are designed to meet the specific needs of our clients. Our tanks are available in multiple sizes, including 1000L, 2000L, and 5400L, and feature a spherical tank bottom design to ensure easy agitation and complete drainage. Our team of experts can help you select the appropriate tank size and configuration for your specific application, taking into account factors such as the size of your irrigation area, the type of crops you’re growing, and the frequency and amount of fertilizer required. We also offer maintenance support to ensure that your fertigation system operates effectively and reliably over time, maximizing your crop yields and plant health.

Can injection pumps be adjusted or reduced in flow to meet the specific needs of your fertigation system.

At Addsup Engineering, we can help you select the appropriate injection pump for your specific needs, and provide support and guidance on adjusting the flow rate to optimize your fertilization process. Our team of experts can also assist with installation, maintenance, and troubleshooting to ensure that your fertigation system operates effectively and reliably over time.

Is it possible to use my own injection pump in my fertigation system, or is it recommended to purchase one from a specialized supplier like Addsup Engineering?

Overall, while it’s possible to supply your own pump for a fertigation system, it’s important to do so carefully and with consideration for your system’s requirements. At Addsup we can help ensure a compatible and reliable pump is used to deliver fertilizer to your crops, leading to improved yields and plant health.

Is it possible to integrate fertigation units with irrigation controller systems for more efficient and precise control of the fertilization process?

At Adds up Engineering, we understand that fertigation units can be controlled with irrigation controller systems, provided that the controller is designed to support fertigation. This requires the installation of a compatible fertigation unit that can deliver the appropriate amount of fertilizer to the irrigation system. Adds up can help you select a compatible fertigation unit and integrate it with your irrigation controller, automating the fertilization process and improving precision while reducing labor. We’ll ensure that your irrigation controller is compatible with the fertigation unit and that the system is set up correctly for optimal fertilization results.

What are the advantages of using spherical tank shapes over cone-shaped tanks in fertigation systems?

At Addsup Engineering, we recommend using spherical tank designs for fertigation systems because they offer several advantages over cone-shaped tanks. Spherical tanks have a larger surface area-to-volume ratio, which promotes better mixing and agitation of the fertilizer solution, leading to more effective and uniform fertilization. Additionally, spherical tanks have a uniform stress distribution and are less prone to sediment buildup, which can cause clogs and reduce the efficiency of the system. Our team of experts can provide guidance and support on selecting the appropriate tank design for your specific needs to ensure optimal performance and efficiency.


Our fertigation tanks offer an affordable solution for mechanically agitating gypsum, magnesium, fertilizers, and chemicals for injection into irrigation systems. With over 10 years of manufacturing experience and over 500 units sold nationwide, our tanks can be customized to suit your specific requirements. We offer various combinations of pumps, motors, speeds, and capacities, and all our tanks come with a standard variable frequency drive (VFD) unit for aggressive agitation of non-dissolving products or minimal agitation of soluble products or chemicals. Our tanks can be further customized with features like steps, operator platforms, overhead work lights, solar panels, secure/lockable control boxes, and more. If you have any unique ideas or requirements, feel free to reach out to us for a customized solution.”

  • 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

The fertigation system from Addsup Engineering has been a game-changer for my crops. I wish I had purchased it sooner! Highly recommend to any farmer looking to improve yields and plant health.   Cirtus Grower Gayndah

Although I was initially hesitant due to its cost, the Addsup Engineering fertigation system proved to be a worthwhile investment. The precision and efficiency of the system are unparalleled, and my crops have never looked better. Highly recommend to any farmer looking to improve their yields and plant health.

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