Grafton Irrigation

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K-Line® Irrigation


K-line irrigation

The simple facts about irrigation.

Good irrigation is getting the required amount of water to the required area of pasture with as little cost and as little effort as possible. However, nothing is as simple as it should be.

Working to achieve the ideal balance you'll have to consider such things as: the rate of application; the cost of running your irrigation system; the efficiency of application and not to mention the capital cost of setting up, running, upgrading or expanding your irrigation system.

All of these factors can contribute to an efficient system or a white elephant.

Firstly, the rate of application. A lower rate of application over a longer period of time helps maintain an excellent balance between the plant and its soil environment. So good irrigation is more than just 'hurling' as much water as you can at the area as fast as you can. You need a simple, flexible system that you can control with ease depending on conditions.

Next, running costs. Higher running pressures using higher pressure rated pipes and pumping systems equates to higher running costs. It all adds up to rather a lot of expensive equipment which is costly to use. And don't forget the labour! Labour costs can add up to a large portion of ongoing irrigation expenditure. Your time is too valuable. You need a simple, flexible system which is inexpensive to install, cheap to run and above all easy to use.

Finally, consideration must be given to your existing farm layout and the expense of any alterations required to install your new irrigation system. Existing shelter belts, paddock layouts, water ways and farm tracks all require a tremendous effort to remove or relocate. You need a simple, flexible, easy to fit system that doesn't turn your farm upside down.

In a few words, you need the ideal irrigation system. It's called the K-LINE®.


K-Line® is a revolutionary flexible hose line sprinkler irrigation system designed to reduce the time and money you spend on irrigation. At the heart of the system is a series of small, tough plastic pods protecting a small sprinkler firmly attached to special K-Line® low density poly pipe. The system can be run on low pressure and is designed to distribute water on a slow absorption method for up to a 24 hour period, firstly, to eliminate the need to shift irrigation several times a day and, secondly, to allow maximum absorption into the soil, reducing run-off and pooling. K-Line® uses less water much more effectively. K-Line® is also very flexible. Variables such as running time per day/night, rotations, application rates etc., can be easily adjusted to suit your farm management style. Stock can also continue to use the paddocks being irrigated.
Each paddock has its own sprinkler line, customised to suit the size and shape of the paddock, and is run simultaneously depending on water supply. However, you don't need to run them all at once. You may choose to run only what's needed, or what's available depending on your water constraints. The small, flexible, strong, lightweight lines can be shifted in only minutes by a 4 wheeled motor bike, by simply driving across the paddock.
Typical farm layout showing
distribution lines and reducing pipe sizes

What you need

The process starts with a visit from your local irrigation consultant to plan you K-Line® system. They will examine the shape and size of your property, land use, the quality and quantity of the water supply, irrigation rotation and the soil types involved. Advise them of your needs - and together, with a hydraulic analysis, water pressure requirements, pump sizes, power systems and budget, your options can be determined.
You'll need a network of distribution mains to deliver the water to each paddock (FIG 1). The size of these pipes are reduced as the number of paddocks fed progressively reduces the cost of main piping. The mains terminate with a single riser or risers depending on the size of each paddock. The feed lines (FIG 3) connect to the isolation valve at the riser, and are customised depending on the size and shape of the paddock. The sprinkler lines are also customised for the paddock, using 40mm and 32mm special K-Line® low density poly pipe. The K-Line® pods are then fitted.
The K-Line® sprinkler units consist of a sprinkler, a specially designed tapping saddle and a tough protective housing (pod). The pod serves many purposes, such as protecting the sprinkler, keeping the sprinkler upright and stopping the crop interfering with the sprinkler action.
Assembly is so simple, many people choose to install the feed and sprinkler lines themselves.
(B) (C)
Shifting rotation within a typical paddock

Easy Shifting

It should be clear by now that K-Line is a truly simple and effective system. And that's also true when it comes to shifting the lines. The unique skid characteristics of the pod and the shifting process have been carefully designed so that, when done correctly, the shifting process places no extra stress on your farm bike other vehicles. The process works for paddocks of all shapes and sizes.
The simple process is as follows:
Go to the far end of the sprinkler line (point AA) in FIG 2). While still on your bike slow down facing the direction you intend to go. In one easy movement, hook onto the sprinkler line, line yourself up with the marker at the other end of the paddock (point B) and drive to the other end. Unhook and repeat shifting process in the next paddock.
When the field has been irrigated completely (point C), disconnect the sprinkler line from the feed line, tow the sprinkler back to the starting position (FIG 3), reposition feed line, connect to the sprinkler line and you're ready to start the irrigation rotation again.

Sprinkler Line
Resetting to starting position

Why K-Line® is so Good

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The major benefits are:

  • Low capital cost.
  • Ease of installation, use and shifting.
  • Suits ALL types of terrain.
  • Best possible use of available water supplies.