Just passing along a silly way I have been watering my bees. I had one of those cheap garden fountains in the shed, look like an old hand pump over a bucket? I put some clean old window screen over the opening so they couldn't fall in. Then under the stream passing through this screen back into the bucket, I placed some rocks of various size. This allows the stream to splatter on the rocks, the bees just walk on the screen and rock to drink, and none have drown yet. That way when I am gone to work, they have pretty fresh, non stagnate water. Been working good so far.