Intercepting Trap at the Junction of a House Sewer and a Municipal Sewer

Explanation:
An intercepting trap is provided at the junction of a house sewer and a municipal sewer.

House Sewer:
A house sewer is a pipe that collects wastewater from various fixtures within a building, such as toilets, sinks, showers, and laundry machines. It carries the wastewater out of the building and connects it to the municipal sewer system.

Municipal Sewer:
A municipal sewer is a system of underground pipes that carries wastewater from multiple buildings to a treatment plant or a collection point. It is the responsibility of the local government or municipality to maintain and operate the municipal sewer system.

Intercepting Trap:
An intercepting trap is a type of plumbing fixture that is installed at the junction of a house sewer and a municipal sewer. Its purpose is to prevent foul gases and odors from the municipal sewer system from entering the building through the house sewer.

Function of Intercepting Trap:
The intercepting trap acts as a barrier between the house sewer and the municipal sewer, preventing the backflow of foul gases, odors, and vermin from the municipal sewer into the building. It is designed in such a way that it allows the flow of wastewater from the house sewer to the municipal sewer while preventing the reverse flow.

Components of Intercepting Trap:
1. Inlet: The inlet of the intercepting trap is connected to the house sewer, allowing the flow of wastewater from the building into the trap.
2. Outlet: The outlet of the intercepting trap is connected to the municipal sewer, allowing the wastewater to flow out of the trap and into the municipal sewer system.
3. Water Seal: The intercepting trap has a water seal that acts as a barrier to prevent the passage of foul gases, odors, and vermin from the municipal sewer into the house sewer.
4. Vent Pipe: The intercepting trap is usually connected to a vent pipe that extends above the roofline. The vent pipe allows the release of trapped gases and helps maintain the water seal in the trap.

Conclusion:
In conclusion, an intercepting trap is provided at the junction of a house sewer and a municipal sewer to prevent the backflow of foul gases, odors, and vermin from the municipal sewer into the building. It acts as a barrier by utilizing a water seal and is an essential component of the plumbing system to maintain the hygiene and livability of the building.