Ebb and Flow Table is a kind of cultivation bed with plastic structure. It is an advanced irrigation method of bottom water supply designed for pot plant nutrient solution cultivation or container seedling cultivation and soilless cultivation. It is usually divided into single layer or multi-layer. The working principle is to use the drop principle to realize regular water supply and fertilization.Ebb and flow(flood and drain)hydroponic systems are popular because they have proven track records as low maintenance,easy-to-use gardens.Ebb and flow systems are versatile,simple by design,and very efficient.