I figured I would try to contribute to this thread as I have made hash many times and even just made some last night and will be making another batch in 5 days. I will put up a full pictoral following this post to demonstrate the way I make it. I developed this system a few years back. I had borrowed a set of "bubble Bags" from a friend and twice made "water/bubble" hash with them. At 1st I really thought that they were great, 5 gal pail, a bag of ice and a drill with a paint mixer attachment.... seemed easy and got quite a bit of hash in return. Shortly after useing the bags I began to wonder how it worked, resin like sap is heavier than water and green matter floats.... seemed basic enough... then I thought "Do I even need the bags to do this"... the answer I discovered was, no.
Here is how I make "water/bubble" hash. Take a jar, fill 3/4 with icy water(almost crystalized) put in trimmings, then shake the hell out of it for 30 seconds. Set the jar down and watch the magic happen. Within 5 mins all the green matter is floating on top, and the bottom is covered in golden trichs! Scoop off the green matter (which you can 2nd wash if you want), keep gently adding water untill all the green matter flows off the top. Now take a coffee filter and run the whole jar through it. Once the water passes through the filter just put on flat surface and scrape the hash off the filter... let dry and you are done.
I have now done this 15-20 times and have learned a few tips but basicly the best way in my opinion.
In 5 days when I make the next batch I will take a series of pics to demonstrate the process. I will also post some pics shortly on what I got from the batch I did last night.
Hope this info helps,
Jonny