Don't know what the rush is??? Be careful of your vent tube, most vent tubes are just vinyl hose and a little plastic barbed fitting with a hose clamp around it. Mine fell off on time and it was a son of a gun to get back on because of no room to get hose clamp tight. After that I don't put a lot of pressure when (re-filling) or better stated displacing air inside the tank with water.
I picked up one of these.
http://www.harborfreight.com/12-volt-marine-utility-water-pump-94639.htmlI thought is might be good for maybe 1 or 2 seasons. That was probably 5 years ago. I'm surprised it still works for the price I paid for it.
I've re-filled by running campground faucet into bucket and then hose from pump into bucket then transfer to RV.
I've re-filled by using 5 gallon water bottles from store then use pump to transfer to rv.
etc, etc
Then do come with sort of short wires, maybe 4 or 5 feet, battery cables helped me out couple of times.
I'd buy again.