Toilet

[Fran Bailey]

When water is left out of sink and tub in bathroom the water bubbels up in commode

[tomh]

Check the vent that exits the roof above that plumbing. If it is clogged, frozen or in any way does not allow air to move through the sanitary line, you may experience siphoning or bubbling in the fixtures. That is where I would start as it may be the simplest solution.

[BobF]

My guess is that you have a drain line that is partly clogged. You can try to auger it out yourself but I think you will be wasting time and money. I would call a drain auger plumber and have him fix it, before it gets worse. If there is also a problem with the vent, he could fix that at the same time.

I do a lot of small plumbing repair, but I don’t do drains. It takes a powered auger and you have to know how to use it. Also messy work!

[Author]

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