Sewer smell in basement laundry room.

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    • #279187
      Avatar photoMasterPlumbers

        We live in a home that is about 47 years old. The laundry room is in the basement. We are on city sewer (not septic). It seems that when I run several loads of wash back to back, we get a sewer odor. This doesn’t happen all the time however. In fact, sometimes we have the odor when I am not doing any laundry. Any ideas on what could be the problem? We do have an open drain on the floor for the Central Air pipe to drain into. Should this be closed off when not in use? Is it possible that we have a clog somewhere?

        Any help would be appreciated.

      • #300237
        Avatar photoRetired plbg1

          The only way you get a smell is when you loose your trap seal are a broken pipe. That fl. drain for ac put some water in the trap the seal might be low.

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