roadfix
Chef Extraordinaire
Identify the odor first.
We once had a foul sewage odor every morning near the bar area. I found out that the J pipe under the bar sink wasn't trapping the odor. We rarely ran water through the bar sink that the water trapped in the J pipe had either spoiled or dried out, allowing foul odor from the main line to come up through the sink.
Also, check to make sure the drain vent pipe (which runs up and out the roof top) is clear of debris.
We once had a foul sewage odor every morning near the bar area. I found out that the J pipe under the bar sink wasn't trapping the odor. We rarely ran water through the bar sink that the water trapped in the J pipe had either spoiled or dried out, allowing foul odor from the main line to come up through the sink.
Also, check to make sure the drain vent pipe (which runs up and out the roof top) is clear of debris.