Home Automatic Low Water Shut-down and Automatic Fill Automatic Low Water Shut-down and Automatic Fill by Better Engineering Automatic Low Water Shut-down and Automatic Fill Click to expand Tap to zoom $1,289.99 Call 800-294-1605 1 2 3 4 5 6 7 8 9 10+ Quantity Quantity Add to cart Whenever the float sensor is not in its high position, a solenoid valve opens to fill the parts washer tank.