I have never made crappie structure before. I am thinking about making some flower pot bamboo buckets. I plan on putting about 4 to 5 pieces of 6 foot or so boo in them and putting some sakrete in the pot for weight. The cheap sakrete is 4 dollars for 80 pounds or the fast setting is like 5 dollars for 50 pounds. How long does it take for the slow setting to cure? Can I do it one morning and then drop it that night like 12 hours later? If I had 20 pounds per pot do you think it would stay put on the bottom in current? I also thought about doing it in some half cinder blocks and pouring sakrete in the hole. How do I need to mix the secrete do I just pour it in and add water?