Got some new parts, two way check valves and some vacuum connetor. I believe what I have drawn in my previous post is correct.
So, I think I am good to go on that one.....

__________________
Mostly, I don't know notin, I just know where to look.
I am looking back, to over 30 years in Electronics Design.
Electrons don't care if they move in a car, computer or relay!

95 W124 E320 M104.992 - Because, I love to repair, naaaah!
Over 221,000 Miles
Cheers,
Norbert