Swimming pools blog

Its that time of the year. Time to close our pools. I am seriously
considering just leaving it open. I am in East Tennessee in
Knoxville. It can get down to zero but it is rare and if it does it
will only happen once and not last very long. The normal average low
temperature for dec is 32, normal average low for jan is 29 and
normal average low for feb is 31. The average number of days to reach
below 32 is 71.
What do you all do? Do you leave your pool open? How cold does it get
by you? Is there something special we need to add to our pool?
Thanks a bunch,
Debbie in Tennessee