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How do I use LeakyPipe on a steep embankment?
    LeakyPipe (LP12L) with a lower leak rate is recommended for green walls and steep embankments. The LeakyPipe is laid out as horizontal laterals incorporated into the batters at 500-1000mm centers.  The supply pipe manifold is run down the face of the slope, at a roughly central position.  A pressure regulator is placed in the supply as it tees into the manifold.  A Pressure regulator is needed for every vertical drop of 4metres.  This is to help ensure that all the LeakyPipes work similarly.   On some of the taller walls, where the watering is automated, upper, mid, and lower layers of the wall become "Zones” where the watering times can be adjusted to apply more water at the top than the bottom.