I’m in the early stages of planning an above-the-garage addition for a master bedroom suite. The current preferred floor plan would put the shower drain approx. 45 ft (laterally) from the existing main drain line on the second floor.
The main drain runs down thru the 1st floor wall to the main sewer line in the basement floor.
Is 45 ft. to far? (I have not talked to builders or plumbers yet, just trying to get a feel for viable floor plans.)
One option is to run the pipe 30 ft. to an existing first floor wall, then drop to the basement ceiling and run the remaining 15 feet before dropping again to the basement floor. Would that help?
I hate the idea of excavating a new sewer line tie-in through my garage floor!