Installation of the irrigation and drainage of sports terrains and play, as well as the surfaces of all kinds of planted

摘要

P installation making it possible to evacuate the water of the surface of a field, but of the store, optionally in the - ground by means of a tight tank made in the terrain / p & & p & the concrete base 1 supports the stones of the edge 2 surrounding the terrain to irrigate and drain. Below the ground is an assembly of layers 3 surrounded by - below, and along its limits by a tank 4 which is impervious to water. / p