What is the purpose of a vapor trap?

Every water fixture in your house has a vapor trap. This "U" shaped pipe is clearly visible under sinks and is present in some form on all lines draining to the sewage system. The "U" shape holds water, preventing gases from backing up from the sewer into the house through the sink drain.

Show All Answers

1. How are sewers placed in the town?
2. Where is my sewer lateral?
3. What should I do if my sewer is plugged?
4. What causes sewer odors in the house?
5. What is the purpose of a vapor trap?
6. What is the purpose of the roof vent?
7. What causes blockages to occur?
8. Whom do I call if I have a sewer problem?
9. Is my home or property connected to the Town's sanitary sewer system?
10. What is the difference between a sanitary sewer and a storm sewer?