We had our drain field replaced last year and have noticed sewer gas smells when we walk around the outside of the house. I think the smells are coming from the roof vents. We never had the problem before, The drainfield was replaced because of saturation and did backup once into the basement. Any suggestions what could be causing this? Thanks Rich

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Originally Posted by rhummer784

We had our drain field replaced last year and have noticed sewer gas smells when we walk around the outside of the house. I think the smells are coming from the roof vents. We never had the problem before, The drainfield was replaced because of saturation and did backup once into the basement. Any suggestions what could be causing this? Thanks Rich

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Hi Rich,

A house vent's designed to pull air into the drainage system. However if there's any blockage or a backdraft set up rhe air will exhaust out the vents presenting the smell that you have. This can only resolved by being on site so you can track it down by elimination. Good luck, Tom