Diamond Grid is perfect for stabilising drains and trenches, protecting them from becoming boggy or being eroded away. Deep drains and trenches are protected by the grids, which support the structure of the drain and allow the water to flow through without washing away the sides of the drain. The grids are also suitable for shallow drains and trenches which are covered with grasses and small plants. The grids support the root structures while still effectively allowing the water to flow through.