What is the house trap? (Plumbing Question)?

Question

Please can anyone explain the purpose of the house trap supported by pictures and videos?

Answer 1

Sorry, no pictures, but it's a simple 'U' trap in the line that isolates the home
plumbing from sewer gas and pests.
Similar in function to the ones under your sinks.
It also 'traps' solids that might otherwise clog your buried sewer line for easier removal.

Answer 2

House Trap

Answer 3

I can't show you pictures, however I can tell you the house trap is designed so you don't get sewer gasses coming into your house. The gasses cannot penetrate water that gets "trapped" in this loop installed. If you look under your sink you will see something similar to your house trap.

Answer 4

This Site Might Help You.

RE:
What is the house trap? (Plumbing Question)?
Please can anyone explain the purpose of the house trap supported by pictures and videos?

Answer 5

At one time house traps were installed in the main line and could be in the basement or out in the yard. Now they are not legal so you won't see one in newer construction.

Answer 6

the water in the trap blocks sewer gas

Answer 7

usaually it is use to clean drain to street. 65