I am creating a water tank in which water is controlled by a microcontroller that uses an ultrasonic sensor to measure the depth of water. My idea was to fill and empty with a single pump. but bidirectional pumps are rare or expensive. so, decided to go with 2 pumps . 1 to fill and 1 to drain. I was using a dc wall adapter to give 12 volts to the pump, which has an output current of 6A. But now I am using 2 pumps so a single pump will use around 6A of current. I am not able to find any wall adapter that gives more than 6A. What can be the solution for it?