You lean closer to the sink, the shower drain and the toilet as you try to identify the source of the offensive odor. You squeeze some cleaner into the toilet bowl .
Water at the bottom of p-traps prevents sewer gas from entering your home.. If for some reason you don't have a p-trap make sure you add one under your sink. A second reason you might have a foul smell coming from your bathroom sink is the growth of biofilm in the pipes.
Bathroom Sink Smells Like Sewer. If the odor emanating from your bathroom sink smells strongly of sewage, then sewage may be the actual culprit. Remember, all your water waste eventually drains to the same place, so the runoff from your bathroom sink will be sharing a pipe with sewage down the line.
But have you ever clearly noticed a sewer smell in bathroom that is just. The first reason you could be noticing a sewer gas smell in bathroom has to do with the water in. It's the section of piping underneath your sink that is shaped like a â€œ
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Your water may smell like sewage due to the presence of bacteria that come from food, soap or other materials sitting in your drain. This bacteria causes a heavy .