Hello, I'm once again looking for some advice - this time on a "double trapout" that I'm starting tomorrow.[attachment=2:1oao8zon]Cindy-Trapout-1.jpg[/attachment:1oao8zon][attachment=1:1oao8zon]Cindy-Trapout-2.jpg[/attachment:1oao8zon][attachment=0:1oao8zon]Cindy-Trapout-3.jpg[/attachment:1oao8zon] The two colonies are in the ceiling void of an old outbuilding at diagonally opposite corners. Inside the room there is evidence of fighting as the floor is covered in dead bees. The owner wants to fumigate both colonies so I thought I'd get two full boxes out and see if I can save most of them. The first colony is fairly straight forward and fitting a cone will be a simple matter. The second colony is a different story and I'm going to have to fit a board over the exposed masonary and timber with a new entrance in it in the location of the old entrance. By doing this I'll have something to fix the cone and backing board to later. The dilemma - my intention is to fit the cone (and place the trapout hive with eggs, brood and food) at the first colony and the new entrance board on colony two tomorrow. I'll leave the cone off this second colony for a day or two so that I can be sure that the bees from colony one don't revert to this entrance. If they do I'll simply close the entrance and trap both colonies at position one, if not then I'll place the second cone and trapout hive at this second entrance. The ceiling void is common to both but I dont believe it is only one colony in the ceiling. I think I'm going to have to fix the second cone. Am I on the right track or do you think there is a better way of doing this? Thanks and regards to all.