Well, it was Wednesday yesterday, and I pulled the feeders out of the hive. They were empty, so I decided to fill them with a gallon each. Four pounds of sugar, and then hot tap water up to the top of the gallon bucket. Before the feed could cool off, however, it started to rain. And rain. And rain.
So today I put the feed in the hives. There was considerable burr comb where the bucket was in the Valentinium after just one day. There was very little there in the Benedictium.
I have discovered that the feeder buckets tend to leak when the water is warm. Perhaps the surface tension decreases with temperature? So I have decided henceforth to let the buckets cool off before flipping them upside down.