Quote Originally Posted by wetshoes1 View Post
I'm having my pool closed this year by a pool company (1st year, wife doesn't let me do it myself) on Sept. 19. How much before that do I start the closing process? How long does it take for me to shock, polyquat, & shock again?
Depending on where you live, that could be pretty early. I take out everything but the ladder (for safety reasons), clean the waterline etc. and put everything away when we stop swimming, but I don't close until the forecast starts calling for freezing temps. IMO early closing and late opening are prime causes of algae in the spring. Last year, I swam on October 4th (in Indiana) with no heater, and closed in early November. This year, I might swim this evening, but with the forecast, I'll be done after today.

If the pool company is doing a standard closing, they will be planning to add chemicals, and they may not be anything you want added.