MAYA Drainage System It is a ready-to-use drainage coil in the pipe with geosynthetic aggregate used for drainage applications. The gravel used in the drainage spiral produced from recycled polystyrene drains 5 times more water than standard stone gravel. While the product provides maximum system life and performance, it also reduces costs by reducing the working time of workers and work machines. It offers an environmentally friendly and sustainable drainage system. Uses: Trench Drains / Foundation Drains / Rain Water Drain Drains / Landscape Drains / Retaining Wall Drains.