The correct answer is: D. At the beginning of sewer line.
An antisyphonage pipe is a device that is installed in a sewer line to prevent the backflow of sewage into the home. It is typically made of plastic or metal and has a one-way valve that allows sewage to flow out of the home, but not back in.
Antisyphonage pipes are typically installed at the beginning of the sewer line, near the foundation of the home. They are also sometimes installed at the end of the sewer line, near the septic tank.
Antisyphonage pipes are important because they can prevent sewage from backing up into the home. This can be a serious problem, as it can contaminate the home with sewage and cause health problems for the occupants.
Here is a brief explanation of each option:
- A. At the end of septic tanks: This is not the correct answer because antisyphonage pipes are typically installed at the beginning of the sewer line, not at the end of the septic tank.
- B. On manholes: This is not the correct answer because antisyphonage pipes are not typically installed on manholes. Manholes are used to access the sewer line, but they do not have a direct connection to the sewer line.
- C. With a W.’trap: This is not the correct answer because antisyphonage pipes are not typically installed with a W.’trap. A W.’trap is a device that is installed in a sink or toilet to prevent sewer gases from entering the home.
- D. At the beginning of sewer line: This is the correct answer because antisyphonage pipes are typically installed at the beginning of the sewer line.