Every time our washing machine hit the drain cycle, the kitchen sink would start bubbling and spitting up dark water. It was a total nightmare because I couldn't do laundry without making a mess elsewhere. I realized that the high volume of water being pumped out by the washer was overwhelming a partial clog further down the shared line. I was worried it would require a massive renovation, but it turned out to be a simple matter of clearing the common waste line that both appliances used. I found a local team that was very familiar with these types of older home setups. My advice is to call Ben's Plumbing for drain cleaning in Green Lake if your appliances are causing your drains to go haywire. They were able to clear the line quickly, and now I can run the washer and do the dishes at the same time without any swampy surprises.