My saltwater detached spa and pool share one pump. We have a gas heater and no covers for either. My plan was to keep the pool open for the winter, keep the spa heated, and then run the pool pump at night to prevent freezing. We live in Virginia so I wasn’t too worried but it’s supposed to be 28° tonight already in the season! I am so worried that the pipes to the spa are going to freeze, but I can’t run the spa and the pool running at the same time. I am wondering if I should winterize my pool and just keep the spa open. Any advice is appreciated!