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Swer gases can back up in any drain that has a dry trap, one that is not often used. Make sure water is run into drains at least once a month. It is also possible that you have a disconnected sewer vent pipe hidden in your walls. This would allow the sewer gas to enter your living space air. Some modern buildings have been built in a great hurry. Some Plumbing fittings, mainly PVC fittings, have not been glued and can come apart.

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16y ago

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