Everything you need to know about flood protection, wastewater disposal and barrier-free bathrooms | The wastewater hero
The history of the manhole cover goes back thousands of years. Even the old Romans used stone covers for their sewers. The classic round design has been established since the 1870s and since then not much has changed in the appearance of the typical manhole cover. And why are manhole covers mostly round? As in…
Particularly in the summer months, after long periods of heat, heavy rainfall events repeatedly occur, often with devastating damage in the affected areas. Heavy thunderstorms cause immense amounts of rain, coupled with storms and, in some cases, heavy hailstorms. The media then often speak of a torrential rain. Definition torrential rain of the century versus…