From: 	Kergma[SMTP:kergma@sv.net.au]

Just on another note - when its raining hard, the pools overflow.  Where 
does that water go, and would it be carrying the curse downstream?

Probably not. But I have another question myself. What if you got a sample of Jusenkyo cursed water, poured it into a pool and stirred throughly? Your very own Cursed Pool?