A sub-surface irrigation method where water is supplied to the soil from the surface of a geotextile fabric rather than from individual emitters in a drip line. Dispersing the water over a larger area reduces the rate of water discharge to the soil bringing it closer to the capillary absorption rate and also converts the drip line from a series of point sources to a single, broad line source.

• SISS uses up to 60% less water than traditional irrigation
• Salinity management
• Reduced water tunneling
• Precise root zone management (moisture, air and nutrients)
• Reduced fertiliser costs
• Chemical free inhibition of roots
• Significant maintenance savings (less damage as it is sub- surface)
• Reduce labour (fixed, automatic irrigation requiring no movement of pipes)
• Surface remains dry while roots are irrigated
• Reduced evaporation, surface runoff, deep drainage and wind drift
• Reduced plant disease and weed growth
• Safe use of waste/ grey/ recycled water (Link to ‘IWT Overview)
• Vandalism is reduced due to sub-surface installation
• Safer usage of recycled or grey water
• Reduced water bills

Conventional subsurface drip irrigation (SDI) systems discharge water to the soil from regularly spaced emitters along a drip line. Each emitter acts as a point source of water and so the drip line gives rise to a series of circular wetting patterns. Conventional sub-surface irrigation systems must be run long enough to wet the driest region of soil.

SISS’ patented design disperses water evenly by matching the capillary action of the soil, creating a controlled and uniform wetting pattern. The SISS irrigation system saves water by directing water straight to the root zone and matching soil absorption rates.

Maintenance is simple and will ensure the effectiveness of your SISS irrigation system. To optimise performance, the SISS system should be run regularly every 2-4 weeks.

Timer batteries will need to be replaced as necessary.

Research and practical experience strongly suggests that the unique arrangement of materials in SISS acts as a powerful, non-chemical deterrent to roots entering and blocking emitters.

This is consistent with root development studies conducted by Commonwealth and Scientific Industrial Research Organisation (CSIRO) (Muirhead et al., 1998) and with University of Western Sydney (UWS) (Fuentes et al., 2004) trials.

A flush valve on the SISS system prevents internal emitters from blocking as it flushes the lines and any small particles every time the system is operated. 

SISS products are manufactured with polyester and polyethylene. The durable materials will last for many years if the maintenance program is followed. See Warranty Statement.

Yes. Should damage occur, the section can be replaced and joiners installed.

SISS can be on our online shop or through a continually expanding number of stockists Australia-wide.

Yes! SISS irrigation has been proven in domestic, commercial and agriculture applications for many years. SISS ensures water penetrates deeply into the soil, but remember, low application rates require a longer watering time.