Types of drainage in London, UK
1. Waste water from the washing machines, dish washers, sinks, basins,baths.
2. Soil water from the toilet, WC.
3. Surface water or rainwater from the roofs, collected by the guttering system.
Types of drainage in London, UK
1. Waste water from the washing machines, dish washers, sinks, basins,baths.
2. Soil water from the toilet, WC.
3. Surface water or rainwater from the roofs, collected by the guttering system.