Utility Sink Between Washer And Dryer . What about a special sink (constructed of say polypropylene sheeting) that would fit between the washer and the dryer? You'll need to connect it in such a way that one sidearm attaches to the horizontal flow where the washer drain exits, and the other side arm will attach to the pipe running from your utility sink drain. Laundry room sink, Farmhouse kitchen counter decor, Kitchen counter decor from www.pinterest.com 27 x 38 x 32 inches. Now, the splitter will separate. The old, gross laundry sink, also known as a slop sink, was made of plastic, and used for washing delicate items by hand.