An above-ground pool can be a low-maintenance option compared to in-ground pools, but that doesn't mean you won't have to take care of it. In order to keep an above-ground pool clean, you're going to need a pool vacuum to keep algae from growing on the pool walls and floor. It's relatively easy to hook up an above-ground pool vacuum. The most important thing is that you should always vacuum the pool immediately before you shock it, and remove all the large debris. It all depends on what you're willing to spend.