Water is drained from a washing machine through a designated drain hose that is connected to the machine's pump. When the washing machine completes a washing cycle, the draining process is initiated. Here's a step-by-step explanation of how water gets drained from a typical washing machine:
Drain Pump Activation: At the end of the wash cycle, the washing machine's control system triggers the drain pump to start. The drain pump is responsible for removing the water from the washing machine's drum and pushing it out through the drain hose.
Gravity Assistance: In most cases, the drain hose is positioned at a lower height than the washing machine's drum. Due to gravity, water flows down from the drum into the drain hose, aided by the pump's force.
Drain Hose Placement: The drain hose is usually inserted into a dedicated drainpipe or a laundry sink. In some setups, the drain hose might be placed directly into a standpipe, which is a vertical pipe connected to the home's plumbing system.
Air Gap or Anti-Siphon Device: In some regions or installations, an air gap or an anti-siphon device might be used in the drain setup to prevent wastewater from backing up into the washing machine.
Pumping Out Water: The drain pump continues to work until most of the water is expelled from the washing machine's drum. The pump's impeller generates pressure, forcing water through the drain hose and into the drainpipe or sink.
Completion of Drainage: Once the drain cycle is complete, the drain pump stops, and the washing machine is ready for the next step, which is usually the spin cycle to remove excess water from the clothes.
It's important to ensure the washing machine's drain hose is correctly installed, securely attached, and not kinked to allow for efficient water drainage. Regular maintenance, such as cleaning lint filters and checking for clogs in the drain system, can also help prevent drainage issues and maintain the proper functioning of the washing machine.