I will have some 4" main drain lines with other pipes connected to it for sinks, etc...and these drain lines will later be covered with concrete. I understand that these are drain lines and not under any pressure but my concern is any sewer leaking under the slab over time. There will be a vapor barrier but still concerned.
When interviewing different plumbers for this job then what is the minimum answer I should expect from them to do as far as testing the pipes when they are done to make sure there are no leaks and maybe some tips on how they say theyre going to go about it ?
When interviewing different plumbers for this job then what is the minimum answer I should expect from them to do as far as testing the pipes when they are done to make sure there are no leaks and maybe some tips on how they say theyre going to go about it ?