JohnF, you asked, "Trying to hold a large, heavy 5 gallon water jug to refill the tank while keeping the little cover flap open is an exercise in frustration".
I had given how I have been transferring water from tank to tank, but I left out a key ingredient to the process, which even not using a pump or syphon could be adapted for pouring from a jug.
Years ago, I discovered it I had a softer, flexible tubing attached to the water hose which could be extended down into the filler hose on the C-class I would have less problem filling it up without an air pocket stopping the water from going into the tank before it was completely filled.
With the Scamp
, the tank being so small, this shouldn't ever happen. However, using the idea of a soft, flexible tube attached to the end of the water hose when filling the tank was the answer to how to fill the tank on the Scamp
though the kind of small fill opening with the hinged flap cover. I had to use a smaller tube on the Scamp because the fill opening is not only small & at a 90 degree angle it has little "bars" making the opening smaller (to keep any large foreign objects from getting in the tank, I assume).
Therefore, I found a (not as soft) vinyl tube which could be inserted between the bars and down into the filler tube. To be able to use a water hose, I found an adapter at a 'Home Center' which will 'screw' onto the hose & but will accept the smaller sized tube.
This little gizmo is really handy, I can fill the tank without having to hold the hinged flap cover up & it is securely held in the filler tube by the little bars....which allows the tank to be filled more quickly.
If just pouring the water from a jug, a similar gizmo could be modified to fit the jugs pouring 'spout' or a funnel, etc.
I use it so much, I completely forgot about the importance of it in filling the Scamp's water tank. Then I need to get photos of the gizmo.
Having a "Water Thief" gizmo is handy as well. Click to See One