On Friday afternoon, two guys from the plaster crew came by to set up a dome. Our temps have dipped below freezing and this dome kept the pool above freezing so that they could start the plaster Saturday morning. They were sort of surprised by the small size of both our pool and yard.
They set up two fans. I thought they were blowing warm air, but they weren't.
This is what it looked like, fully blown up. The fans went all night…