When waste water is routed underground and not along the surface, then it refers to as Underground drainage. Advantages for going with underground drainage are many which are installed after careful consideration of many factors. The materials used in the construction of these systems must be sturdy and able to withstand gasses and chemicals that are discharged along with waste. The pipes should also be able to resist tree roots that could grow through them. A reliable and well-functioning drainage system is important otherwise the situations arising can damage foundations of a home, damage gardens, look ugly and restrict free movement of people and kids.