In good humor, I have to inform you of one of my pet peeves - the word drainage. I used to work as a plumbing apprentice (till I got a real job) and "drainage" reminds me of all the gross things you find in peoples drains, like drain salad - you know, the stuff that's left over after you rinse off the dishes or take a shower (you get the point). I thought I'd share with you how grossed out that word makes me, since its on all your Bitteroot pages ;)
BTW, the images on this page are exceptional.
"In good humor..." I certainly hope that was tongue-in-cheek!
Drainage? I worked for a year as a plumber (a hell-of-a long time ago) so I know what you mean. But most readers haven't done such things, hence I use "drainage" for them.