Oh I finally got around to watching your video .... and it's kind of funny.
I seems that you reversed the power wires, reversed the sending unit wires, and reversed the hose connections, making it work and easier to understand, but technically it's all "wrong" vs the instructions.
The "upper" barbs (with it mounted upside down as you do in your video) are supposed to be the front tank, and you point it out in your video as being connected to your rear tank. That's according to the instructions:
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The aftermarket uses A-F instead of numbers, so I'll label it as such below.
It appears that you did:
(nothing) - F
#1 brown -> E
#2 red -> D
#3 front -> C
#4 gauge -> B
#5 rear -> A
The "proper" pinout to match the instructions should be:
(nothing) - F
#2 red -> E
#1 brown -> D
#5 rear -> C
#4 gauge -> B
#3 front -> A
So yeah, you reversed brown and red power wires, as well as front and rear sending unit wires. But since you also reversed the hoses vs the instructions, it should work.
I just went outside and double checked my work from a year ago and yeah, I have it hooked up the "proper" way with the wires and hoses since I went by the instructions. It's far more confusing the "proper" way, I admit. Dunno why they wrong the instructions that way. Maybe so it wouldn't conflict with the Ford factory harness patent or something? IE: Mixing up the wires on the harness.
Just thought I'd mention that since your easier way completely conflicts with the instructions that come with that style valve and may confuse someone in the future without this clarification if they do your wiring but do the hoses the way the instructions say. Might also confuse yourself in the future if you don't realize the hoses are reversed and you go and connect them up per the instructions, if you go back some day and replace the valve again.
Oh and for some slight extra confusion for follow Econoline owners, vans have different wire colors, but the same pinout:
#1 brown (only one the same)
#2 is orange(?)
#3 is a lighter green, sort of olive (front tank)
#4 is yellow (gauge)
#5 is a slightly darker green (rear tank)
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