DONT DO IT!!!!!! (well try it on one bud)
This really fucks up the tastes of the bud.
The idea is to soak the weed in a bath of water, for a week, Changing the water daily with as little aggitation as possible so as not to knock off crystals.
Once a week has passed you need to dry your weed out quick, or else it moulds. I dont mean put on a ballast and fast dry, just ensure the plant has plenty of airflow and isnt in a hot environment.
What I found was that the smoke was imensly smooth, the bud looked wierd, like it had been in the wash, strangly enough. But there was no taste.
Terpenoids, flavenoids etc are water soluble, so you are litterally washing the chlorophyll and flavour down the drain.
Give it a try, I mean what harm does the potential loss of one bud do.