I am remodeling a basement bathroom. The location for my new shower drain is directly above a main line to the septic. There isn't room for a p-trap right at the shower so my contractor ran the line directly into another pipe about 3 feet away. He says that he couldn't get a trap to fit in the space he had. This concerned me and when I asked him about it he informed me that a local plumber had said that occasionally you have to 'do what you can' when it comes to subgrade drains. The shower is vented and there do not seem to be sewer gases spewing from the drain.
Are there occasions when it is acceptable to not trap a low-level shower drain?
Are there alternatives to a formal in-line trap that can be utilized at the drain entrance itself? Maybe a water-gasket device similar to a toilet?
Are there occasions when it is acceptable to not trap a low-level shower drain?
Are there alternatives to a formal in-line trap that can be utilized at the drain entrance itself? Maybe a water-gasket device similar to a toilet?