Attached is diagram for existing bathroom ( as best I can remember, its been 20 yrs )
Problem i'am having is that some of the toilet waste is draining to shower trap. Toilet is new with a good flush but has inner closet flange ( not sure if that is a cause )
I will crack basement floor to fix problem if necessary but is it possible to fix without doing this (fingers soooooo crossed! lol)? ( adding AAV vent under sink? running AAV vent off shower and up inside of wall-in blue on diagram )
If I do have to crack the floor I would prefer to keep shower and sink drains or is this not possible? If I had to pick one it would be shower drain.
If I do have to do this, what is the correct way since I would be starting from scratch? ( if possible please start from the shower drain and work toward street...my brain only works in one direction! lol )
Note: on floor above, is a kitchen and 3 piece bath that are back to back and tie into stack.
Thanks for time and help, much appreciated.
Problem i'am having is that some of the toilet waste is draining to shower trap. Toilet is new with a good flush but has inner closet flange ( not sure if that is a cause )
I will crack basement floor to fix problem if necessary but is it possible to fix without doing this (fingers soooooo crossed! lol)? ( adding AAV vent under sink? running AAV vent off shower and up inside of wall-in blue on diagram )
If I do have to crack the floor I would prefer to keep shower and sink drains or is this not possible? If I had to pick one it would be shower drain.
If I do have to do this, what is the correct way since I would be starting from scratch? ( if possible please start from the shower drain and work toward street...my brain only works in one direction! lol )
Note: on floor above, is a kitchen and 3 piece bath that are back to back and tie into stack.
Thanks for time and help, much appreciated.
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