Below is an example of a jog lever steering system complete with provisions with a backup “steering wheel / Helm Pump”. In this example, we chose to use two Accu-steer HRP-35 reversing pumps with the lines combined. To control the flow direction, we incorporated the use of a heavy duty dual direction 12V solenoid. In our opinion, the Accu-steer HRP-35 is the finest reversing DC pump available on the market today. We have over 15+ years of dealing with these pumps from Accu-steer (now owned by Kobelt) and they have proven themselves in very high-hour commercial application… very quiet, smooth, and reliable.