My sink backs up when running water for 3 min. Also into dishwasher. It's also a double sink. On the other hand, my dishwasher also backs up into sink. This causes a disgusting smell through my home. Especially in the bathroom and my bedroom.
I do have a basement, and when water backs up into sink ..it also backs up out of floor drain downstairs. I had snake run through and it's not appearing to be stopped up. New pipes were put in under sink and it didn't help.
Please give me something I can do. I'm a single woman trying to figure this out.