For your wash system you can use the water from your on board pressure supply. You only need a solenoid valve. As soon as the valve gets a signal via the wiper control, it will open to provide water for the wipe/wash program.
€86.51
€83.18
€79.86
€6.65
€100.93
€42.15
€102.04
€70.98
€9.98
€141.36