I'll spread the word around--off the top of my head I don't know anyone who can do what you do but I think I can find something similar.
We have to stay afloat for another week. If we can make it through the week, I think it'll break. What about water purification tablets or systems? If we can harness the current water supply and clean it rather than trying to bring in more, maybe it'll help.
Be careful. I'll try to signal boost you when I can.