Zima Blue

When I moved into my current place a few years ago there was an in-ground pool in the backyard. It was unheated & had no cover, so I ended up adding a heatpump as well as a safety cover so that it wasn’t a deathtrap for a young child. The cover is ‘automatic’ in the sense that the opening/closing action is electrically operated via a keyed switch, but I always thought it would be an interesting…