If you’re curious to know what the Crozet Pool dome’s fan sounds like, this is a recording from the window of one of its neighbors ….Crozet Pool Dome Noise at the window, 5 minutes
On a different note, a friend asked if they could paint clouds on the dome so it’s not merely a big blue blob.
Update: from the neighbor who recorded the audio:
“Please add a note that the volume changes depending on the time of day and the temperature. Another neighbor’s biggest concern is, since it plays so quietly on some machines, that people will think it’s no louder than a house fan. If she can hear it in her house, over 200 feet away, inside, with the windows closed, it’s no house fan.”