I would guess by filling it through the filler valve in the wet bay it would run through a pressure regulator valve installed in the hose reel? Or ?? whereas the gravity filler is not restricted therfore would fill faster.
Honestly, I haven't gotten that far yet... but its my guess. May not be a pressure regulator at all.. but at any rate, you have less resistance filling directly into holding tank.
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Slim, RVing 30 plus years
2015 Dynamax DX3 37 RB
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