Kirk posted these photos to our Yahoo Group. They show another strategy against ants: a plastic tub full of water, a milk crate inside the tub, and the hive perched on the milk crate.
Backwards Beekeeper Riley followed up:
I'd have a problem with mosquitoes doing this. Perhaps some oil on top of the water?
I would guess that just a bit of bleach in the water every so often would prevent any mosquito breeding.