Hi all, We have an old motorhome. The only way to fill up the water tank is by sticking a hose in the hole and filling it up manually. When we run out of water, we have to drive the motorhome to the tap and plug in the hose and fill it again manually. If we can not park within 25 ft the tap I have to walk over and fill up my 25 Ltr water container but then I have no way of getting the water into the tank. I saw this on Amazon but it says it doesn't pump uphill and if the container is on the floor it would need to pump upwards into the tank. The only way to get over this would be to try and lift the container on the roof which is ridiculous. My question is, does anyone know of any pump that is 12v or battery operated that would do the job? I'm sure there must be other funsters in the same boat as me. Or rather in the same motorhome Tec.