The one thing I am having trouble with right now is getting 'trigger_waterydeath' to work. I have the brush made and assigned the function, but it doesn't work, it throws an error in the console, but I can't remember what it is right off hand.
Need to know that.
Either way, I suspect it's either improperly addressed, improperly shaped, or the plane is intersecting through the world plane. Let us know the error.