![drainage - What is causing my kitchen drain to back up into my dishwasher? - Home Improvement Stack Exchange drainage - What is causing my kitchen drain to back up into my dishwasher? - Home Improvement Stack Exchange](https://i.stack.imgur.com/t9V12.png)
drainage - What is causing my kitchen drain to back up into my dishwasher? - Home Improvement Stack Exchange
Why does my washing machine back up and fill my sink when it's draining on its spin cycle they do share the same drain pipe and are back to back with a
![Washing machine (right) and dishwasher (left) wastes connect to kitchen sink trap. It often smells when the washing machine is running, any ideas as to how I can stop that from happening? : Washing machine (right) and dishwasher (left) wastes connect to kitchen sink trap. It often smells when the washing machine is running, any ideas as to how I can stop that from happening? :](https://preview.redd.it/6djh8ia88ye71.jpg?auto=webp&s=89ad67ea32b05e6e58628ecf83509992ad6650dd)
Washing machine (right) and dishwasher (left) wastes connect to kitchen sink trap. It often smells when the washing machine is running, any ideas as to how I can stop that from happening? :
![Can washing machine clog main sewer lines? | Minneapolis Plumbing | Plumbers MN | St. Paul Plumbers | Minneapolis Drain Cleaning Clogged Drain - Kens Sewer Service Can washing machine clog main sewer lines? | Minneapolis Plumbing | Plumbers MN | St. Paul Plumbers | Minneapolis Drain Cleaning Clogged Drain - Kens Sewer Service](https://kenssewer.files.wordpress.com/2012/07/p_scp_252_02.jpg?w=584)