129529 ⎘
Sewerage structures; Collecting-tanks; Equalising-tanks for regulating the run-off; Laying-up basins using already existing parts of the sewer system for runoff-regulation
Utilizing debris basins for stormwater retention
#2SURFACE WATER DRAINAGE SYSTEM
#3Septic system with overflow discharge system
#4Multiple Inlet flow regulator
#5First flush passive flow control valve
#6Wastewater source control system
#7Wastewater source control system