Plumber recommendation...

[DaveO]

This situation is going to take some more thought -



The lines have been snaked and are not clogged. I am still have troubles with the toilet flushing. I removed it and snaked it's drain line, and it is now free and clear. Still having problems with it flushing

Dave

[McRabbet]

Drain water can't run uphill -- I know, that's so obvious -- so it seems to me that you need to replace that section where it does run uphill. If you have a laser-equipped level, can you check slope for the entry vs. exit of that area to see if you could replace that section with new sloped pipe? Is there any way to raise the sloped sections farther upstream by pulling up the hangers to raise the starting height of the bad section to give you more potential slope in that add-on area? You may need to cut some riser connections and add slip couplings, but you've got to get slope into those lines to eliminate the problem.

It is amazing that you haven't had more problems before now. I also suspect you've got a full tanks as well that needs pumping. If waste is now backing up where it didn't before, then solid-laden effluent was getting through that up-sloped section when there was enough head to force it through on the next flush. It can't do that now.