So, as you can see in the above pics, fill one bucket with water, ice and the trim. Use the blender to agitate for about 2-3 mins. Then take a break for 10 or so minutes, maybe smoke one or hit a bowl. That's what I do, usually.

Repeat the agitation step a three or four times. Then, using the silkscreen (and a colander for shape), pour the whole mixture into the other bucket. Squeeze all the water out of the plant material and discard it.