Source: http://www.thriftyfun.com/tf62986638.tip.html

Sewer Odor Coming from Sink

I own a small restaurant. I have a terrible sewer smell coming from my sinks, when I pour large amounts of water down the drain or use the dishwasher. If I turn on the air conditioner its worse.

I have replaced all the kitchen pipes, put in new pee traps, and had all the toilet seals cleaned, and the vent stack. I put in a grease trap, had the sewer lines cleaned out twice, had the lines with a camera to check for cracks, had a smoke test done to check for leaks, and raised the roof vent.

It still smells mainly on hot days. Can anyone offer any help? I also had a plumber check and he found nothing.

By Carol

Source: http://www.thriftyfun.com/tf62986638.tip.html

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