It can be, but it doesn't have to be. There are a lot of things you can do to reduce the cost of maintenance, like using a pool cover, cleaning the filter regularly, and using an automatic pool cleaner. The biggest expense is usually the chemicals you need to keep the water clean and free of algae and bacteria. You'll also need to test the water regularly and make adjustments as needed. So if you're not comfortable doing that yourself, you'll need to hire someone to do it for you. But all in all, I think it's worth it! Swimming is a great way to get exercise and stay cool in the summer.

It can be expensive to maintain a swimming pool, but it depends on the size of your pool, the type of filter you have, and how often you clean it. In general, most people recommend cleaning your swimming pool at least once a week. You'll also need to replace the water in your pool every month or so, and you'll need to buy chlorine or other chemicals to keep the water clean. Depending on where you live, you may also need to cover your pool during the winter to keep it from freezing.