The KISSS system works by pulsing water through the lateral lines for several minutes a few times a day at a very low pressure between 6 and 32 psi.  The water running through the lines disperses out the pressure compensating emitters, hits the dispersion tape and then is absorbed by the patented capillary fiber.  Lateral percolation is reduced due to the polyethylene backing that is exclusive to the Below Flow Flat.  This then allows the soil to absorb the water from the capillary fiber at its own rate based on the soils need for water.

The Geo-Textile layer of Below Flow Flat evenly distributes water to soil through capillary action. This unique form of irrigation constantly adjust to soil conditions watering only dry soil.

Thanks to superior Subsurface Capillary Irrigation (SCI) wetting capability Below Flow FLAT uses roughly less water than Subsurface Drip Irrigation (SDI) while wetting 300% more soil volume.