A dedicated plumbing fixture, consisting of two vertical pipes, provides water supply and drainage for laundry appliances. One pipe supplies fresh water to the appliance, while the other acts as a drain, carrying wastewater away. This setup is typically located in a utility area, laundry room, or basement.
This arrangement offers several advantages. It provides a safe and controlled method for water supply and drainage, preventing overflows and leaks. The elevated drain pipe helps maintain proper drainage and prevents siphoning. Historically, this configuration has been a standard solution for clothes washers before dedicated laundry sink units became common. It remains a practical and code-compliant option in many regions.