Thank you!!Good Afternoon,
Actually your label is off by one position. 2 & 5 is actually 1 & 4. The three way valves are mount sideways pointing toward the front of the van. But the 1st photo is to correct position for winterizing the water lines. 2 & 4.
Thank you!!I believe you have labeled 4-6 correctly. Take a peek behind that panel to see if the valve is positioned the same as the 1-3 valve. I’d bet that they have your 4-6 valve “clocked” incorrectly.