What is the reason for odors coming from a drain?
All the drains, traps and pipes that carry wastewater out of your house require maintenance, just like your furnace requires service and your car requires oil changes. When water goes down the drain-whether it is in the bathroom, kitchen, or laundry-it first passes through the S-shaped pipe under the sink called the "P-trap" (why it's called a P-trap when it's shaped like an S is a mystery). The downward facing loop in the P-trap contains a small amount of water to prevent odors backing up into your drains. The pipe then runs to the main waste line out of the house.

As long as things are running smoothly there will be no problems or odors.

Show All Answers

1. What is the reason for odors coming from a drain?
2. What makes the system not run smoothly?
3. What causes buildup?
4. What causes airborne bacteria?
5. What is the cause of discolored water or water that looks dirty?
6. What do I need to know about water hardness?
7. Why does my water have a cloudy, milky appearance?
8. Do I need to use a water filter?
9. What do I need to know about lead and copper in relation to my water?
10. How can I reduce lead in drinking water at home?