Summary: Learn how to construct a french drain.
A French drain is a simple and efficient form of drainage that requires no pipe work. Water collects in a trench filled with gravel or stone, preventing ground surface water from penetrating foundations. The French drain will carry water away from the wall or property to a
soak away. French drains are also often used to drain water away from retaining walls or from the outlet of a septic tank. Though easy to construct you may need a surveyor if you don't think you can get the gradient right. You may require planning permission for the drain but if not, the drain must still comply with
building regulations.