I have started taking the valve unit apart. This is the control unit for the 3 leveling valves. The 3 small control valves came out. Is there anything to take apart at the 3 little valves (control valves). Where can I get the rectangular rubber rings for these or do you need round o-rings? I lost 2 of the sphere heads for the control valves. Can I get these somewhere?
Is there a source for the big rubber seal in the pressure reducing valve?