Got this off a different site but it seems pretty straightforward...
Materials:
1. Water cooler (or any other item to hold water, with room for buds)
2. Water
3. Dehydrator (optional)
4. Bud
Steps:
1. Chop down the plants as normal, and manicure them like normal. But dont dry them. (ive heard you could dry and cure normally and then do the water cure but to me it seems like a waste of time)
2. Lay the manicured buds in the bottom of a cooler and slowly pour water into the cooler, trying not to move around the buds too much. If the buds float, put a plate or something over them so that they stay COMPLETELY submerged. (if they arent completely submerged, it is pretty much a molds dream vacation)
3. Change the water every day for 7 days, and on the seventh (or eighth if you want... just be sure that they dont make it past
take them out and hang them up to dry with a fan blowing on them (food dehydrators work well too... or in the over on the lowest temperature) and it shouldnt take more than a few hours to dry. After its dried, its ready to be smoked or stored.
NOTE:
Doing this will cut down on the amount of final product because of all the contaminates it removes. It will also kill bag appeal, so i wouldnt recommend doing this for a commercial grow since it pretty much turns the weed brown. But it does increase the concentration of THC (does NOT make more THC) but since THC isnt water-soluable, the contaminates get removed, but all the THC stays. Although it seems hard to believe (to me it was at first...) ive never seen any mold come up from doing this method (and ive even got my friends into doing it with theirs... no mold on theirs either). I would still recommend doing it on only a small part of your harvest at first tho, so that way if something goes wrong then it will only be a little bud lost instead of a whole crop