Disadvantages of Saltwater Pools More complex than traditional pools, they often require experienced technicians even for minor problems. Salt can cause damage to some materials, so you may have to avoid using specific types of heaters, fixtures, underwater lighting, liners, and even some types of masonry work.

While saltwater pools offer a "softer" feel, they come with several high-value disadvantages in 2026, primarily higher upfront costs and corrosion risks. A saltwater system requires a "salt chlorine generator" (cell), which costs significantly more to install than traditional chlorine systems and must be replaced every 3 to 7 years at a cost of $800 to $1,500. Salt is also a naturally corrosive agent; if the water chemistry isn't perfectly balanced, it can damage metal ladders, pool heaters, and natural stone decking over time. Additionally, saltwater systems are less effective in cold water (below 60°F), where they may stop producing chlorine entirely, requiring manual intervention during winter months. Finally, they are entirely dependent on electricity to operate; if your power or the salt cell fails, the pool can quickly turn green unless you manually add liquid chlorine, making it a more complex system to troubleshoot than a standard chlorine pool.