No knowledge of a specialized funnel, but if you are even a little bit handy, try this:
Obtain the following :
2 pieces of wood about 3/4" x 2" and 8" long
2 cheap plastic spring clamps
1 conventional plastic funnel
2 ft. garden hose or other flexible plastic hose
1 hose clamp
wood screws and glue
-drill a circular hole (with a spade bit) towards the end of one piece of wood so that the narrow end of the funnel jams into it and holds tight with enough funnel sticking through to attach the hose.
- screw (and glue if possible) the two pieces of wood together to form an angle bracket. (the top piece of wood will be horizontal holding the funnel vertically, the other piece of wood will hang down vertically)
- Jam the narrow end of the funnel into the hole and attach the hose underneath to the funnel with the hose clamp. This should be done so the hose acts as a stop against the wood and helps prevent the funnel moving in the wood.
- using the two spring clamps, clamp the vertical part of the wooden bracket to the Trailmanor's upper shell vertical strut which is near the fresh water tank inlet.
- Poke the hose in the tank inlet and pour water in the funnel
It doesn't matter if the hose hangs below the tank water inlet as long as the neck of the funnel is above the level of the water inlet. The bit of of water left in the hose at the end can be transferred to the tank by lifting up the funnel when unclamping.
You could also use a small metal angle bracket to join the two pieces of wood together or to reinforce the joint.
Paul
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