I had rigged up a pulley system. 2x4 with an eye hook in the middle, placed across the top step and adjoining brace of an 8 foot step ladder. The problem is I need 3 hands to
hoist and hold the bag while I tie it off after lifting.
Now I just muscle the bag out of the kettle, hold it as long as I can to drain, and drop it into a 5 gallon perforated homer bucked nestled into a 7.5 gallon fermenter. 15 minutes of gravity drainage and a 7.5 gallon dough in yeilds 7 gallons of preboil wort. A pair of vinyl gloves protects my hands from heat as I adjust the bag to get it into the bucket. My biggest grain bill this way was 27 LBS. for a 10 gallon batch. I have also considered using strap ratchets and letting it drain directly into the kettle, just not sure how to ensure the grains all drain into the kettle (the full grain bag assumes a natural shape similar to a hammer head)