What else can happen? The pond caught fire…

…well, the UV filter did. It's a long UV bulb that fits in a slot in the skimmer, and I'd changed the bulb a week ago and had it running.

We've had a lot of algae, which means cleaning the filter every 3 hours or so, so we'd left the skimmer lid off. That's one lucky break. Lucky break #2, we happened to be working right at pondside just 10 feet away, planting some items, when Jane smelled smoke and investigated. If we hadn't been right there, we'd have had an electrical fire possibly...