Install washing machine plumbing by connecting hot and cold water supply hoses to dedicated shut-off valves. Use braided stainless steel hoses for durability. The drain hose connects to a standpipe or laundry sink at least 30 inches high to prevent siphoning. Ensure the drain pipe is 2 inches in diameter for adequate flow. Install a washing machine pan underneath to catch leaks. A water hammer arrestor on each supply line prevents pipe banging during the fill cycle.