Doctor Rain is a leading manufacturer for rainwater harvesting system in China. Rainwater Harvesting Tank is also called rainwater soakaway crates, or stormwater infiltration tank or retention tank, detention tank and attenuation tank. Doctor Rain Rainwater Harvesting Module is a part of the rainwater utilization system, which can effectively collect and store rainwater. Rainwater resources collected through Doctor Rain Rainwater Module can be used to wash toilets, sprinkle pavement, irrigate lawns, water landscape, and even be used for circulating cooling water and fire fighting water. It can alleviate the current shortage of urban water resources, and is an effective way to open source and save water.