As much as you don't want to, you know the nights are getting chilly and shorter, and it's time to close the pool. But a properly closed pool will help you open it quickly next summer.
There are a few things you need to do. First remove all the ladders, ropes and if you have one, the diving board. Clean them all good and store them away. Make sure your chemistry is balanced. You want to brush down and clean the pool sides, and then vacuum. Next is to turn off your pool heater if you have one. Then shock your pool and add your algaecide this will make sure the water is nice and clean for next year. You will then lower your pool water level down below the returns, and then blow your lines out with a shop vacuum. Then close the return openings with your screw stoppers. You can add plumbing antifreeze to your skimmer. Also available is frost protecting tubing that can be put into your lines. Next it's time to drain and clean your pump and your filter. A good precaution is to also add plumbing antifreeze to your pump. Last is to put your winter cover over your pool and make sure it is secure. Cover you skimmer opening as well.