When should you replace a hard hose irrigator hose?
Hard hose irrigators (often called hose-reel irrigators or just reel machines) can run for decades, but the hose itself won’t last forever. If your reel machine has done 20 to 30+ years of towing a gun cart across paddocks, it’s normal for the hose to be due for replacement. Hoses wear from repeated pull-in and drag-out, UV exposure, and abrasion.
The good news is the reel, chassis, gearbox, and retraction system on a quality hose-reel machine can keep going for years, so a new hose often gives the whole irrigator a second life.
A real WaterForce job: 30 years on, still working in South Auckland
We’ve just replaced a hose on an Ocmis hard hose irrigator (hose-reel irrigator) that’s been running for around 30 years on productive vegetable country near Pukekohe.
Mark Hill from WaterForce has spent 30+ years selling and servicing these reel machines across New Zealand, and he’ll tell you straight: this is not unusual. These machines are engineered to a high standard in Italy. The upfront cost can be significant, but when a hose reel irrigator is still earning its keep after three decades, it’s hard to argue with the long-game value.
What actually wears out on a hose-reel irrigator?
A hard hose or hose-reel irrigator does a simple job, but the hose does a lot of hard yards. Every irrigation run involves:
- Pulling the hose out (often across cultivated ground, headlands, or grass)
- Retracting it under load back onto the reel
- Dragging a gun cart that’s got weight, movement, and vibration
- Dealing with grit, stones, UV, and the odd rut that grabs the cart wheel at the wrong time
Over time, that adds up. On most reel machines, the hose is the consumable item that takes the most punishment.
Common signs a hose is getting tired
If you’re wondering whether your hose is nearing the end, these are the red flags we see most:
- Cracking or surface checking, especially where UV has been hard on it
- Soft spots, bulges, or flat sections that suggest internal damage
- Leaks that keep returning even after repairs
- Kinks that don’t “relax” out like they used to
- Rough retraction or the hose not laying neatly on the reel (sometimes a symptom, sometimes the cause)
A hose doesn’t have to be blowing out daily to be “done”. If you’re nursing it through the season and avoiding certain pulls because you don’t trust it, that’s usually your answer.
The setup: hose size, length, and the gun cart
The Ocmis unit on this job carries a 125 mm OD hose and it’s 350 metres long. Ocmis build hose-reel machines in a wide range of sizes, so hose diameter and length are matched to the area you need to cover and the flow you’re running.
On the end of the hose, you’ve got the gun cart. This is where irrigation efficiency is either won or lost.
Guns we commonly see on NZ reel machines
It’s common to see big volume guns like:
- Komet
- Nelson
- Sime
The gun choice matters, but the setup matters more. Nozzle size, operating pressure, trajectory angle, lane spacing, and wind exposure all play a part in how evenly you apply water and how much energy you burn doing it.
What happens to the old hose?
This is the practical bit.
The old hose from this reel machine isn’t heading straight to landfill. It’s being recycled onto a neighbouring leased block and repurposed as a mainline to support additional irrigation.
That’s a good reminder: “replace the hose” doesn’t always mean “the old one is worthless”. It means it’s not reliable for repeated winding and towing anymore. As a static mainline, it can still have plenty of life left, depending on its condition.
Where hard hose and hose-reel irrigators make sense
Hard hose irrigators (hose-reel irrigators / reel machines) get used in more places than people realise, because they’re flexible and they don’t need permanent infrastructure across the whole area.
Common applications include:
- Sports fields
- School grounds and playgrounds
- Lifestyle blocks
- Race courses and training tracks
- Pasture and crop farms (sheep, beef, deer, dairy)
- Vegetable and arable blocks
They’re also used for effluent application in certain setups (with the right design and compliance considerations).
Can you upgrade the application method? Hard hose booms
WaterForce also supply hard hose booms that can be fitted to these irrigators (including many hose-reel machines). They’re manufactured in the UK by Briggs Irrigation.
A boom can be a solid move where:
- You want a different droplet profile (often gentler than a big gun)
- You’re chasing better distribution uniformity on certain crops
- Wind drift is a constant problem
- You’re irrigating areas where overspray is a headache
Why it’s usually worth replacing the hose (instead of replacing the whole machine)
When the core machine is sound, a hose replacement is often the most cost-effective way to extend the life of a hard hose / hose-reel irrigator.
You’re keeping the parts that typically last well if maintained:
- Chassis and reel structure
- Gearbox and drive components
- Retraction system (turbine/drive depending on model)
- General engineering that was built to be repaired, not binned
And you’re renewing the component that wears out first.
Next step: talk to someone who’s been around these machines
If you’ve got an older reel machine and you’re wondering whether it’s time, give WaterForce a call.
We can help you:
- Assess the condition of the hose and reel
- Recommend the right hose size and length for your application
- Check gun setup and tuning (nozzle, pressure, angle)
- Look at boom options if a gun isn’t the best fit for the job
Get in touch with WaterForce and ask for our irrigation team. If your hose-reel irrigator is due for a hose, we’ll tell you straight what’s worth doing and what isn’t.
KOMET - https://www.kometirrigation.com/
SIME - https://www.simeirrigation.it/en/
NELSON - https://www.nelsonirrigation.com.au/
OCMIS Irrigation - https://bestirrigationreel.com/
WaterForce Agricultural Irrigation Solutions - https://www.waterforce.co.nz/water-for-food/agriculture
WaterForce Commercial & Sport Field Irrigation - https://www.waterforce.co.nz/water-for-industry/green-spaces
