US Patent 7237980 System for infiltrating and irrigating water into soil

A soil infiltration irrigation system includes a plurality of water-permeable containers and a water-feeding pipeline communicating with each of the containers. The containers are provided with connectors for connecting to the water-feeding pipeline and are also provided with an air-relieving pipe connected to the container. The water-feeding pipeline supplies water from a water supply reservoir which can feed the water-feeding pipeline either by gravity or by a booster pump in the pipeline. The air-relieving pipe has an air outlet installed at an elevation that maintains a water level in each container. The containers may be double-layered, with the air pipe communicating with an inner layer and the outer layer communicating with the water-feeding pipeline.