I used my home build/developed bee vac for the first time.
Problem is : it works too good
there is so much suction that I think the bees get "crushed" in the roller coaster ride of their life. :-(
I did manage to suck half a bee box full:
I am going to make a modification to my setup
I am going to put parts of an AC unit at the entrance of my bee vac that effectively will reduce the air speed (much like an air brake)
Next thing I want to do is get a larger vacuum hose. I want the air speed in the hose to be lower, the only point where I want it to be higher is at the entrance of the tube to suck up the bees.
All (surviving) bees are now inside the box .
I plugged the old entrance to the home.
Will check again in a few days