From my notes, first valve should be @ #1, second @#6 to fill from hose.
If you are sucking in from a bucket for some reason and using the pump, should be 1, 4.
Ah, but this is why i take pictures too. My 2018 has valves like the below in the driver side rear storage compartment.
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2018 Jayco Greyhawk 31FS
2023 Wrangler 392
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