Raineo by Pipelife - Flood becomes fiction Raineo builds an underground system, that catches, cleans and stores excess rainwater for further use. In times of extreme weather conditions, due to the climate change, Raineo systems are a solution to many problems. They help you preventing floods in times of excessive rain and store the water for long periods of drought. Then, the collected water can be used for sanitary purposes or irrigation. A typical Raineo system catches rainwater, redirects it to a cleaning station and stores it into a tank, built of stormboxes or infiltration pipes. Sometimes they also include flow control units to discharge the tank.