The thread is titled hand pump. The question is how to get water from a primitive campsite to your rig. If all you have is a hand pump near by, you will have to put the water in something, then get it to your camper, then transfer it to the fresh water tank. How far away, the size of the container you want to pick up and pour in, ....... the list goes on. 5 gallons of water weighs 40 pounds, and that is about all you will be comfortable pouring in, probably. If you are looking to haul 30 gallons at a time, will need 6, 5 gallon jugs. I would use a drill pump, one that would go on a cordless drill, and pump the water in the tank, rather than lift and dump. If I was doing this often, as in every time out, and had to drive for water, I would get a blue tote, the kind used for sewage. I would get a brand new one, sanitize it, and use it for transporting fresh water to the camper, and then use a drill pump to put the water in the tank. If the hand pump were close, a couple of 5 gallon jugs would be fine for me.
My question to you is, where are you dumping? The gray and black tanks have a limit. I can get three showers and a dish washing or two, and my gray tank is full. We can make about 5 days on the black tank, (two adults). You can't jeep putting in without having to let something out.
2012 Ford F250 ext. Cab 4x4
2002 Jeep Wrangler Sahara
2008 Yamaha V-Star 650 Classic
2008 Work and Play 18LT