I sent a message to Sarah (Bee Happy Plants) to tell her that it was time to put a second teabag of thymol into my top bar hive at her nursery. We spoke on the phone and I told her where to find the thymol bag, in a small screw topped tin under the roof at the rear end of the hive.
Sarah has a bee suit but no hive tool or smoker yet, so I advised her to use a screw driver and asked if anybody close by smoked. Her daughter, a smoker, was there so I suggested that she light up and gently waft a little smoke at the hive entrance, just enough to give them a whiff and not in an attempt to gas them! After at least 2 minutes, giving the smoke time to work, Sarah was to take the roof off the hive and, working from the rear, remove a bar about a third of the way up and, if all was well, another to give viewing and working space. She could then gently ease the bars back until she came to the first full sized combs and then shove the thymol bag as far forward as sensibly possible under it, then close up.
Half an hour later, Sarah rang back to say that all had been done according to plan with no mishaps and no stings. Well done that apprentice!