Hi Dan & Jan,
Added thought about dust collector hose.
In both 2.5" and 4" sizes you can buy flanges that secure to the side of a hive after drilling a large exit hole for the bees. Use collector hose fittings on the hose and you can insert/remove easily in the flanges.
If you use a T-fitting immediately outside the hive exit the undertaker bees will drop dead bees in the drop where they will stack up, and with the right fittings you can easily empty them by unplugging.
JP
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