Drip
Irrigation
Drip
irrigation is an efficient watering system where minimal water
is wasted through wind, evaporation, run-off or overspray. Drip
irrigation is effective against erosion, soil compaction, insect
and fungal problems in plants.
Drip Irrigation components
Integrated
drip line:
Integrated dripline involves a plastic tubing with internal drip
emiters at 15cm or 30cm spacings along the length of the tube.
This line does not require any separate heads or components, and
can be laid either above or below the surface of the soil or under
a layer of mulch. For more information about sub surface drip
irrigation (eg. for under turf), click HERE.
Drip line is available in 4mm, 6mm and 13mm diameters (internal).
The diameter you use is dependent on the run length of the drip
line that is required. For more information, see our guide
to installing drip irrigation.
Drip
emitters:
Drip emitters
attach to standard irrigation (black) poly pipe and apply a consistent
amount of water to your garden plants. 2, 4 or 8 litre per hour
heads are available. Drip emitters are effective for watering small
garden areas, pots or areas where emitter spacings of greater than
30cm is required. At the very least, one emitter is required at
the base of each plant, and can be installed straight into the main
irrigation pipe, or extended away from the pipe using 4mm black
tube.
Weeping hoses:
Weeping hoses
are made of black recycled tyre rubber and can be attached to a
fixed watering system or an ordinary garden hose. Rather than having
drip emitters, water soaks through the walls of the weeping hose.
As with integrated drip lines, weeping hoses can be laid above or
below the soil or in a layer of mulch.
Pressure
regulators:
Pressure regulators
are required for all of the above drip irrigation systems to ensure
reliable and effective use, and prevent blowouts or pipe damage.
Drip irrigation emits water far more slowly than traditional spray
systems, and runs best at pressure levels that are far lower than
standard mains pressure. Pressure regulators will reduce operating
pressure to 12, 25 or 30 psi depending on the particular pressure
regulator installed and the type and length of drip irrigation used.
|