Water back up from dishwasher in sink
Hi,
I have a dishwasher and my sink has a disposal. I am having a problem that i was wondering if i need a plumber to correct. When my washer is in use water comes up into the disposal side of the sink. Also sometimes i find water laying in the bottom of my dishwasher that is stagnant and doesn't smell very good. My double bowl sink drains have a bad smell in them quite a bit also and i use different products to take the smell away. Does this all connect to the same issue?? Thank you or any help you can give me.