My bathroom is fairly small, it is upstairs, has a shower in the far corner then a toilet and finnaly the sink near the door. Problem started a few dasya go with the toilet getting clogged, I tried plunging as usual and didn't work, I tried harder and noticed air/sound coming in from the shower drain, eventually toilet water came out. If I recall we ran a snake in the toilet drain and replaced the wax and is now running fine, the sink was never clogged, but if we used enough water and flush the toilet then water will come up from the shower drain.

So we tried to snake through the sink drain, and cleared it out, but we have the same issue so I'm assuming the problem lies between the toilet and the shower, I believe the shower conenects to the toilet and then to the sink, which is why the ink doesn't have any issues, the snake we bought doesn't fit through the drain in the shower.


What do I need to do to get this back up and running?

Thank you very much.

I would suggest pulling the toilet again and run a large auger down the drain. Something like a two or two and a half inch bit. Put in enough cable to reach the bottom floor and to at least outside of the house.

Thanks for the quick reply mygirlsdad, we are pretty sure we cleared that main downpipe, the sink drains fast, never slowed down, we ran the snake a few times through there, we think we need to go left of the sink towards the toilet and the shower drain.

"lies between the toilet and the shower" nope your clog is downstream of both. When the toilet backs up into a shower there is no clog between those two. MGB is on the right track,larger snake should do it. "need to go left of the sink towards the toilet " can't steer a snake, they follow the pipe. Rod from the toilet downstream and you have to hit it.

Bob is 100% correct. If the blockage were between the toilet and shower, the toilet simply would overflow. Since when the toilet is flushed it backes up into the shower, the blockage is downstream of the shower in at least a three inch pipe, maybe four inch. This is why you should go back in the toilet drain with a larger auger. The sink may drain fine, but that's probably because you only have a partial blockage downstream which is allowing the small volume of water from the sink to drain just fine.