Can anyone advise me on a way to make an osmosis watering system for
when
I'm away from home please?

Look at this diagram of my setup. http://science-stuff.tripod.com/watering.jpg
The position of the basin of water also the plantpot is fixed, so I
can't drop the pot to ground level for instance.

Firstly, will this "wick" system work?
If so, then how can I construct the wick etc.?
First thought is hollow plastic tube stuffed with sponge rubber....
.....What do you think?

Thank you.