I think the foam helps a lot, I did the same thing.Thanks. Ryan, I'll recommend the paint job to my sil. The PVC around the hydrant was to contain great stuff insulation for some additional margin in cold weather but it does offer some physical protection.
One problem we had in really cold weather was folks leaving the hose attached too long after they filled the troughs. In really cold weather it only takes a few minutes for an ice plug to start forming in the mouth of the hydrant if the hose is attached because the hydrant is trying to siphon the hose empty when you shut it off. I tried quick fittings but they froze up and wouldn't always work. I finally added these Y adapters to the hydrant. As soon as folks shut the hydrant off, they open the unconnected side of the Y fitting and that allows the hydrant to drain immediately. Then they have time to get the hose disconnected without any chance of an ice plug starting in the end of the hydrant.