Those that want to consider the environmental impact can go "green" with a miniature hand-operated version. They are inexpensive and use very little soap and water, and no electricity. If you want the absolute king of the hill when it comes to engineering and performance, treat yourself a Miele washing machine.
It is not a very hard job for the consumer to maintain the machine in good condition. At the outset the users should follow the instructions given in the manual supplied along with the machine. Manufacturers prescribe certain methods to maintain the machine in good condition. Physical inspection of the interior and exterior of the machine before and after every wash is necessary. Never overload the machine with more clothes than what is prescribed. Electrical connections should be perfect not only to protect the machine but also the person who operates it.