Unlike in the city, where sewage ... In a holding tank system, the waste remains in the septic tank until it’s full. Then it ...

drainage channels and underground stormwater tanks used as intermediate buffers during heavy rainfall,” explains Marco Hahn, Director Sales of the Forming Business Unit at Dieffenbacher. The latter ...

It is the world’s largest floodwater diversion facility, featuring enormous 70-metre-tall cylindrical tanks ... temporarily by creating large underground holding ponds beneath the tracks ...