Did you just have a pool installed? If you did, it's important to have a swimming pool filter installed, whether you have an above-ground or in-ground pool. These filters have to be present because of the many benefits we can get from them.
1. Clean water - clean water doesn't just mean clear water. There are minute particles of dirt and dust and bacteria that the naked eye cannot see and these will get into the water over time, especially if you don't have any covers on yours. That's why it's important to have a pool filter have all the impurities flushed out to have a cleaner, safer pool for your family to enjoy.
2. Less chemicals - if you have a pool filter working for you, you don't have to put as much chemicals on the water as much anymore.
3. Safer water - if you have a lot of kids who use the pool, then it gets more important to have a clean and safe water for them to swim in. Kids also have a tendency to swallow pool water, and if you have all these dirt and debris in the water, they will be at risk for some possible diseases like diarrhea or something more worse.
If you have a swimming pool, you should understand your responsibility to always keep in clean and safe for the ones who will use it, especially the kids. Never underestimate the presence of a swimming pool filter, whichever kind you have for your pool. They will keep you and your family in the long run by providing you always with a crystal clean and clear pool water, maybe even allow them to play some swimming pool basketball as much as they want.