When the temperatures start to cool off, it is time to start thinking about your swimming pool closing. By planning ahead, you can make sure that you have all the supplies you need when the time is right. It is a good idea to wait until the temperature is consistently below 65 degrees to close your pool if possible. This reduces the likelihood of algae growth while you are not using it.
Swimming pool closing starts about a week before you put the cover on for the last time for the season. This is when you should put in a phosphate remover that will help keep algae out. You will need to diligently remove all the debris from your pool, brushing and vacuuming the sides and the floor and cleaning out the skimmer and pool baskets. Testing the water chemistry will help you figure out any adjustments you need to make to the alkalinity and pH. A couple of days before your swimming pool closing, you will want to shock the water and chlorinate it to kill any remaining bacteria in the water. Cleaning the pool filter and draining the lines are important final steps before you put on a safety cover or other cover for the winter months.
By completing your swimming pool closing correctly, you will have a much easier time opening it when warmer temperatures return in the spring. You won’t have to use as many chemicals to rebalance your water, saving you money. You can also help your pool surfaces and pool accessories last as long as possible. Even during the off-season, you should check your water’s chemical balance about once a month and make adjustments as needed.