Q. What is Sub-surface Textile Irrigation?

A. A sub-surface irrigation method where water is supplied to the soil from the surface of a geo-textile 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.

Q. How do the KISSS Below Flow products deliver water to the soil?

A. Water flows through the KISSS geo-textile layer and is taken up by the soil at its natural absorption rate.

Q. What are the benefits of KISSS sub-surface irrigation systems?

A. KISSS has a number of benefits:

  • KISSS uses 50% less water than traditional irrigation
  • Salinity management
  • Reduced water tunneling
  • Precise root zone management (moisture, air and nutrients)
  • Reduced fertilizer costs
  • Chemical free inhibition of roots
  • Significant maintenance savings (less damage as it is sub- surface)
  • Reduce labor (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
  • Vandalism is reduced due to sub-surface installation
  • Safer usage of recycled or grey water
  • Reduced water bills


Q. How is KISSS different to conventional sub-surface drip irrigation systems?

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

Q. What do I have to do to maintain my KISSS irrigation system?

A. KISSS reduces the maintenance burden by eliminating adjustment and repair of overhead nozzles, rotors and risers. To optimize performance, the KISSS filter should be cleaned and lines flushed every 6-12 months. Timer batteries will need to be replaced as necessary.

Q. Will roots get into my KISSS product?

A. Research and practical experience strongly suggests that the unique arrangement of materials in KISSS Below Flow Flat 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. Furthermore, in over 10 years of commercial use, there have been no confirmed cases of roots blocking emitters where KISSS has been correctly installed.

Q. Does the KISSS system experience blockages?

A. A filter on the KISSS system prevents internal emitters from blocking. An "Air/Vacuum Release Valve" prevents suck back from drainage and discharges air from the system at start up to prevent air locks and to ensure even watering.

Q. How long will KISSS products last?

A. KISSS irrigation products are manufactured with polyester and polyethylene. The durable materials will last for many years if routine maintenance is conducted.

Q. Can KISSS irrigation systems be repaired?

A. Yes. Should damage occur, the section can be replaced and joiners put in.

Q. Where can I purchase it from?

A. KISSS is only available from KISSS America. Please use our Contact Us Tab on the main page of the website.

Q. Are you sure that my plants will get enough water?

A. YES! KISSS irrigation has been proven in domestic, commercial and agriculture applications for many years. KISSS ensures water penetrates deeply into the soil, but keep in mind that low application rates require a longer watering time.

Q. Can the material be installed under an existing turf?
A. Yes. It can be cut into the lawn using a plough attachment or a narrow trencher that minimizes disturbance.

Q. How is the material installed under turf or a garden?
A. In gardens it is installed about 6" under the soil and mulch. In turf, the material is installed via plow or trenched. Please see the installation tab for more detail

Q. How much water will it use per week?
A. It depends on the type of plant material, the weather conditions and the soil type. However, studies have shown KISSS to reduce water demand by over 50% when compated to overhead irrigation.

Q. Why is KISSS exempt from many water restrictions?
A. KISSS is generally exempt from many water restrictions due to one simple fact: KISSS is the most efficient method of irrigation currently available on the market. This is achieved through the efficient application of water and through the installation under soil where evaporation, run off and misting are eliminated. *You should check with your local water authority if Sub Surface irrigation is
exempt in your area as water restrictions vary in different regions.

Q. How do I know KISSS is working?
A. You will know that your KISSS product is working as at start up you will hear air being expelled out of the outlets and almost immediately you will notice water migrating into the geo-textile fabric. You can also dig around the garden area to ensure that water is being distributed evenly around the garden. Alternatively you can install an Indicator Flag. The Indicator Flag will signal when the system is pressurized and operating correctly.

Q. Should the KISSS product be installed with the color tape facing up, down or to the side?
A. The KISSS Below Flow Flat product must be installed with the color tape facing up. KISSS Below Flow Wrap can generally be installed in any position without compromising the integrity of the system, however in sub-surface installations it is recommended that the "Wrap" KISSS product be installed with the color tape positioned either facing down or to the side.

Q. Can I run KISSS together with overhead sprinklers?
A. KISSS will discharge water at a much lower rate and has been proven to be the sole irrigation source for turf and plants even in harsh conditions like those found in Dubai and Saudi Arabia. Overhead irrigation can be used to supplement KISSS, particularly for short periods of time after an area has been overseeded to assist with establishment. Quick connectors positioned on the mainline prior to the Pressure Reducing Valve are a common solution to allow supplementary overhead irrigation when the goal area of a soccer field is overseeded.

Q. Do I need a Filter?
A. Filters are recommended as they remove any water borne debris that can potentially block the KISSS emitters. The filter used for KISSS systems should have a screen size of 120mesh(130um). Any debris small enough to pass through this filter size will simply flush through the KISSS emitter.

Q. Do I need a Pressure Reducing Valve (PRV)?
A. PRV's are used to reduce the operating pressure of your KISSS system, thus ensuring the uniform discharge and operation. Excessive pressure can cause irregular discharge rates, leaking around fittings and in severe cases can cause pipe distortion and damage. If your water pressure exceeds the recommended operating pressure of your selected KISSS product then you will require the installation of a PRV.

Q. Can I run my KISSS system off a rain water tank?
A. As long as there is enough pressure from the pump system KISSS will work very will with rainwater collection systems.