Aerating just before planting/seeding may promote deeper root growth and thicker turf. This avoids the vented air from bubbling through the liquid and unnecessarily aerating the liquid. While one tank is in settle/decant mode the other is aerating and filling. The aerating pool features multiple illuminated spray fountains under a canopy of large oak trees. Its burrowing provides a role in aerating soil in the south-western Cape. Initially, there were 30 precipitating tanks and 60 aerating or filtering tanks. It can be also used as an aerating medium for potted plants. Shortening is responsible for providing tenderness and aerating the dough.