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The Onga OJ800 FarmMaster Junior is a high-performance cast iron jet assisted pressure pump designed for demanding rural, agricultural, and domestic water supply systems. Featuring a robust coated cast iron pump casing and injector housing, the OJ800 utilises jet and venturi assisted technology to provide strong suction and high pressure performance for irrigation, stock watering, and general water transfer applications. The pump can operate as either a manual or automatic pressure system when paired with a pressure switch and pressure tank.
Powered by a 2.4kW electric motor, the OJ800 delivers flows of up to 255 litres per minute with a maximum head of 123 metres. The horizontal single-stage centrifugal design with a closed impeller ensures efficient pumping of clean, debris-free water. When combined with appropriate injector kits, the pump can handle shallow well suction lifts up to 7.6 metres and deep well applications up to 49 metres, making it highly adaptable for various water sources including tanks, bores, dams, creeks, and rivers.
Engineered for durability and reliability, the pump incorporates precision-engineered internal components and a TEFC motor design for continuous duty operation. The FarmMaster OJ range is known for its rugged construction and dependable performance in harsh rural environments where reliable pressure supply is essential.
FEATURES
- 2.4kW electric motor (single or three phase options)
- Maximum flow: 255 litres per minute
- Maximum head: 123 metres
- Heavy-duty coated cast iron pump casing
- Jet and venturi assisted pressure pump design
- Horizontal single-stage centrifugal pump
- Closed impeller for efficient clean water pumping
- Shallow well suction lift up to 7.6 metres
- Deep well lift capability up to 49 metres
- Manual or automatic pressure system operation
- 1½" inlet and 1" outlet connections
- Designed for clean water pressure systems
FAQs
General Product FAQs
1. How do I choose the right pump for my setup?
Selecting the correct pump depends on your required flow (L/min), total head (vertical lift + friction loss), and power source. If you're unsure, contact our team and we’ll size the right system for you.
2. Do you offer support with system design or setup?
Yes — we provide expert advice to help you choose, install, and optimise your pump system. Whether it's a simple setup or a custom solution, we’re here to help.
3. Do you offer complete pump solutions or just products?
We don’t just sell pumps — we provide complete solutions. From accessories and control systems to full packaged setups, we can supply everything required to get your system running efficiently.
Shipping & Availability
1. Do you offer Australia-wide shipping?
Yes — we ship across Australia. Bulk or oversized orders may incur additional freight charges otherwise we offer free shipping over $100*
2. How long does delivery take?
Orders are typically shipped within 1–2 business days, with delivery taking approximately 2–7 days depending on your location.
3. What courier or freight companies do you use?
We work with a range of trusted carriers including Australia Post, StarTrack, TNT, and other national freight providers depending on the size and location of your order. This allows us to ensure fast, reliable delivery across Australia, including regional and remote areas.
Warranty & Support
1. Do your pumps come with a warranty?
Yes — all products are backed by manufacturer warranties. Warranty periods vary depending on the brand and product type.
2. What support do you offer after purchase?
We provide ongoing support including:
- Installation advice
- Troubleshooting
- Spare parts supply
- System upgrades
3. What is the warranty process if something goes wrong?
If you experience an issue, simply contact our team with your order details and a description of the problem. We’ll guide you through troubleshooting and, if required, arrange repair, replacement, or manufacturer assessment in line with warranty terms.
Why choose Foundation Pumps?
1. Why choose Foundation Pumps over other suppliers?
We focus on supplying proven, high-quality pump solutions backed by real industry knowledge. Unlike general resellers, we understand how these systems perform in the field and provide honest, practical advice to ensure you get the right solution the first time.
2. Do you offer expert advice before and after purchase?
Yes — we support you at every stage, from selecting the right pump through to installation and ongoing use. Our team is available to assist with sizing, troubleshooting, and system optimisation whenever you need it.
3. Do you stock trusted brands and quality products?
We carefully select and supply pumps from reputable manufacturers known for reliability and performance. Our range includes both industry-leading brands and high-value alternatives that meet Australian standards and conditions.
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