[rusty99]

Hi Guys,

Looking for some plumbing advice if you could give your thoughts.

Have a shower in the basement bathroom that doesn't get used much (once every 3 months maybe). In the last year I have noticed dirty/sandy water stains from dried up water that has been backing up in the shower. Been keeping and eye on when I'm home from work.

Yesterday I find a bunch of dried up toilet paper that has backed up via the shower drain. Call the City of St.Albert who sends a crew over to scope the main sewer line. Main Sewer from the 4 inch clean out to city sewer is totally clean. We then check the stack in the basement and it is totally clean as well all the way to city sewer.

City guy's scope won't fit down the shower drain but he suspects that blockage could be in basement shower drain. Said I could pour lots of bleach & hot water down shower drain to try and unplug it. Then rent a small hand auger to try getting it clean.

What I can't seem to grasp is why toilet paper from the 3 upstairs toilets is ending up in basement shower drain if the main stack is clear?

Heading back to work on Sunday and need to get this figured out.

Thanks guys,