Agricultural Dosing Pumps and Fertigation Injectors
Dosing Systems Australasia supplies water-driven dosing pumps and fertigation injectors for Australian agriculture. Our MixRite, Dosmatic, Chemilizer and AquaBlend injectors run on the water flowing through them, so there is no electricity needed at the point of injection. They meter fertiliser, water-soluble nutrients, crop protection products, sanitisers and stock treatments in proportion to flow, so every litre leaves the injector at the same concentration.
From a single nursery bench to a large irrigation block or a row of poultry sheds, we help growers and producers choose, install and maintain the right injector, backed by local technical advice and spare parts from our Northmead, NSW base.
- Water-driven and non-electric: powered by your existing water pressure and flow.
- Proportional dosing: the dose stays constant as flow rises and falls.
- One range for fertigation, crop protection, water medication, water line cleaning and farm hygiene.
- Fixed-inline, by-pass and mobile trolley set-ups to suit the size of your operation.
- Australian stock, spare parts and technical support.
Water-driven, non-electric dosing pumps
A water-driven dosing pump uses the pressure and flow of your water supply to power itself. As water passes through, the pump draws in a set percentage of concentrate and blends it evenly downstream. Because the dose is tied to flow, it stays accurate when demand changes, without batteries, controllers or a power point.
That makes our farm chemical pumps a practical fit for remote paddocks, sheds, dairies, tank filling and irrigation lines where power is limited or unavailable. Chemilizer injectors use diaphragm technology that is not affected by sand or minerals in the water and perform well at low flow rates, while MixRite and Dosmatic cover everything from small, precise doses to high-flow applications.
Fertigation injectors for crops, nurseries and turf
Fertigation delivers nutrients dissolved in the irrigation water, straight to the root zone. A Dosmatic or MixRite fertiliser injector meters liquid fertiliser and water-soluble products in proportion to flow, giving consistent nutrient concentration across the whole irrigation cycle with less waste than batch mixing. Our practical guide to fertigation with water-driven injectors covers it in more detail.
For larger systems, a by-pass fertigation set-up diverts a small portion of the main flow through the injector, so a relatively small fertigator can treat large volumes cost-effectively. It is well suited to distributing fertiliser over large areas and to adding chlorine or acid when filling storage tanks from dam or bore water. Where you need to move between benches, blocks or greenhouses, the Mobile Fertigator mounts a Dosmatic SuperDos on a trolley for portable, electricity-free fertigation. For mobile dilution with a spray gun, see the MixRite Cart.
Water medicators for livestock and poultry
Water medication is one of the most efficient ways to treat a flock or herd. MixRite and AquaBlend water medicators inject treatments, vaccines, vitamins, minerals and supplements into drinking water lines at a proportional dose, adjusting automatically as animals drink more or less. AquaBlend Xtreme is also built to handle common water line cleaning chemicals and wettable powders between treatment programs.
Always follow the product label and veterinary advice for dose rates. For more on livestock, poultry and dairy applications, see our Animal Health page.
On-farm hygiene, foaming and biosecurity
The same proportional injectors dilute detergents, sanitisers and disinfectants to label rate for vehicle and equipment wash-down, shed cleaning, footbaths and general farm hygiene. For hose-end application, the water-powered HydroFoamer and HydroSprayer lay down a clinging foam for longer contact time or cover large surfaces quickly with a fine spray. Our guide to choosing a portable foamer or sprayer covers the difference in more detail.
For chemical selection and application rates, always follow the manufacturer’s label and current DAFF and state authority biosecurity guidance for your situation.
Which agricultural injector is right for you?
Use this quick guide to compare our agriculture range. Our team can confirm sizing for your flow rate and chemical. For a wider comparison, read our guide to choosing a water-driven dosing pump.
| Product | Best for | Key specifications |
|---|---|---|
| MixRite | Fertigation, livestock water medication, water line disinfection | 3/4″ models: 7 to 2,500 L/h, 0.2 to 8 bar. Fixed and adjustable dose rates |
| Dosmatic | Horticulture through to large-scale agriculture | Wide range of flow and pressure options |
| Chemilizer | Low-flow applications and dirty or mineral-heavy water | Diaphragm water motor, no water filtration needed |
| AquaBlend | Water medication, vaccination, nutrients, water treatment | 0.17 to 41 L/min, 0.3 to 6.2 bar. 0.4 to 2% or 1 to 5% models |
| AquaBlend Xtreme | Medication plus water line cleaning chemicals and wettable powders | 2% and 5% variable models |
| By-Pass Fertigation | Large irrigation flows and tank filling | Dosmatic or MixRite in a by-pass loop |
| Mobile Fertigation | Nurseries and greenhouses needing portability | Dosmatic SuperDos, up to 76 L/min, 0.2 to 2.5%, 30 L tank |
| MixRite Cart | Mobile dilution with a spray gun for nurseries and garden centres | Suits all 3/4″ MixRite models |
Why growers and producers choose DSA
- Specialists in water-driven dosing, with the leading brands under one roof.
- Help sizing the injector to your flow rate, chemical and application.
- Spare parts, seal kits and servicing support from our Northmead, NSW base.
- Australia-wide supply and delivery.
Frequently asked questions
What is a water-driven dosing pump?
A water-driven dosing pump uses the flow and pressure of your water supply to power itself and inject a set percentage of concentrate, with no electricity required. The dose stays in proportion to flow, so the concentration stays consistent when demand changes. DSA supplies water-driven pumps from MixRite, Dosmatic, Chemilizer and AquaBlend.
How does a fertigation injector work?
A fertigation injector is plumbed into the irrigation line and meters liquid fertiliser or water-soluble nutrients into the water in direct proportion to flow. This keeps nutrient concentration constant through the irrigation cycle and delivers feed straight to the root zone, with less waste than manual or batch mixing.
Do MixRite and Dosmatic injectors need electricity?
No. MixRite and Dosmatic injectors are powered entirely by the water passing through them, so no mains power, batteries or controller is needed at the injection point. This makes them well suited to paddocks, sheds, dairies and remote irrigation lines.
Can a dosing pump medicate livestock drinking water?
Yes. Water medicators such as MixRite and AquaBlend inject treatments, vaccines, vitamins and supplements into drinking water lines at a proportional dose, adjusting automatically to how much water the animals drink. Always follow the product label and veterinary advice for dose rates.
What is by-pass fertigation?
By-pass fertigation uses a gate valve to divert a small portion of the main irrigation flow through a Dosmatic or MixRite injector, where it is mixed with concentrate and returned to the main line. It lets a relatively small injector treat large flows cost-effectively. It needs careful calibration and is best for broadacre fertiliser distribution rather than high-precision dosing.
Which dosing pump is right for my farm?
It depends on your flow rate, water pressure, the chemical you are injecting and the dose rate you need. For example, AquaBlend handles 0.17 to 41 litres per minute, while 3/4 inch MixRite models cover 7 to 2,500 litres per hour. Contact the DSA team and we will match an injector to your application.
Talk to a dosing specialist
Not sure which injector suits your system? Tell us your flow rate, chemical and application and our team will recommend the right set-up.
