Hi Rod See website http://website.lineone.net/~dave.cushman/petjel.html Regards From:- Dave Cushman, G8MZY Beekeeping and Bee Breeding, website http://website.lineone.net/~dave.cushman Archives of IBList, website http://website.lineone.net/~d.cushman > Has anyone ever heard of putting paraffin on the end of top bars? >