At times your house can be super clean and still smell strange odors(sewer gas) especially at night when you have closed all the windows.And that smell is always annoying.
Where does it come from?
Foremost,drain traps are protection from sewer gas.The plumbing drain is designed to retain a small amount of water each time the sink drains.And that standing water in the drain trap keeps sewer gases from escaping the drain and entering into your clean house.There are traps in every drain because any connection that leads to the drain system is also possible outlet for sewer gas.
1) Unused drain sinks
You could be having sinks that you don't regularly use.And they can dry out which allows the sewer odor to come out from the sewer pipes.To fix that problem, fill the drain traps with running water for afew seconds.This will help block odors from coming up from the sewer pipes.
2) clogged sinks
Occasional clogs in the kitchen sink,bath tab or shower drains are a fact of life.
This can be caused by trying to dispose things like; paper products,vegetable and fruit skins,small fragments of animal bone materials, cooking oils and various cosmetic fats etc .
3) Leaking drainage traps
The piping which are mostly plastic can be leaking thus allowing sewer gas to escape .Always check the piping for leaks .Thank you
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