It's SE and that's when most Pool owners accidentally start wasting chemicals. During the summer when your pool is being used more often and the weather is hot, you'll need to add more chemicals to keep your water balanced, but as the weather gets colder, there's less people using the water and less Sun evaporating your chemicals and that means you don't need as many products to help keep things balanced. so test your water regularly and add less chemicals as needed. Follow us at swim University for more pool care tips throughout the year.