The correct answer is: D. All the above
Sewage is pumped up from low-lying areas, flat areas, and basements. This is because sewage is typically heavier than water, and it will naturally flow downhill. In order to prevent sewage from backing up into homes and businesses, it is necessary to pump it up to a higher elevation. This is done using sewage pumps, which are typically located in the basement or crawl space of a building.
Sewage pumps are typically powered by electricity, and they can be either automatic or manual. Automatic sewage pumps will turn on when the level of sewage in a tank reaches a certain point, while manual sewage pumps must be turned on by a person.
Sewage pumps are an important part of the sewage system, and they help to keep our homes and businesses clean and safe.
Here is a brief explanation of each option:
- A. From low lying areas
Sewage is typically heavier than water, and it will naturally flow downhill. In order to prevent sewage from backing up into homes and businesses, it is necessary to pump it up to a higher elevation. This is done using sewage pumps, which are typically located in the basement or crawl space of a building.
- B. From flat areas
Even in flat areas, sewage can still flow downhill. This is because the ground is not perfectly flat, and there are always slight variations in elevation. In order to prevent sewage from backing up into homes and businesses, it is necessary to pump it up to a higher elevation. This is done using sewage pumps, which are typically located in the basement or crawl space of a building.
- C. From basements
Basements are typically located below ground level, and they are often the lowest point in a building. This means that sewage can easily flow into a basement if it is not properly pumped out. In order to prevent this, sewage pumps are typically installed in basements.
I hope this helps!