Sand Slit

A narrow channel formed into a turf surface to aid the removal of surface water to sub-surface drains. The slit may be formed by excavating soil and filling with sand or may have sand injected into a channel without soil excavation. The width and depth of a sand slit will vary according to the design specification. A width of up to 50mm might be typical for a sand only slit where the soil is excavated; but 20 to 35mm width where it is injected into the existing soil; this narrower slit is typically called surface banding. Spacings between slits will typically be between 0.25 and 0.5 metres. Sand slitting might also be referred to as Sand Banding. Other names for narrower sand slits do exist, including Sand placement and Sand groove.