Everyday clean water is flushed down the drain in sinks, bathtubs and washing machines resulting in what is called greywater. In most areas greywater can be reclaimed and used to water landscape plantings. The most common is the "laundry to landscape" greywater system.
Simply install this three-way manual valve on the outflow pipe of the washing machine. The three-way valve allows you to switch between routing the laundry greywater to your plants or to the sewer/septic system.
Note: Check locally for greywater applications and regulations in your area