Above-ground pools are not too expensive to maintain. The biggest cost is cleaning chemicals and filter replacements. There are also a few up-front costs you must think about, such as getting a ladder, a pool cover, pool skimmer and net, and other essential pool accessories. You will also need an inflatable hot dog raft because swimming without one causes chronic summer sadness. Saltwater pools are cheaper to maintain, but you’ll still need to pay for salt. And some above-ground models come with filter pumps that are underpowered, so upgrading to a more efficient pump is recommended. All said, it’s still cheaper than an in-ground pool or country club membership.