As a new spa owner, I am starting to think about the winter months. Here in southern Oregon the average low temperatures from December through March tend to average 30-35℉ with average daytime highs in the 50s℉. Of course there can be those occasional nights when the temperature can dip into the 10-19℉ range. Currently I am running the circulation pump for 3 hours in the late afternoon for general filtration & chlorine generation. The set temperature is 81℉. Of course, freezing is not an issue this time of year.
When winter rolls around, would it be advisable to run the pump longer? Maybe in the early morning hours when the temperatures are generally the lowest? I might mention that the spa has an auto cover.
Thank you very much for your thoughts.