Saltwater vs. Chlorine Pools: Which is Right for You?
When it comes to keeping your pool clean and healthy, the sanitization system you choose plays a crucial role. Saltwater and traditional chlorine are two of the most common pool systems, each with its own set of pros and cons. We’ll explore the differences between saltwater and traditional chlorine pools, and all the considerations to take when deciding on your future Tiny Pool® project!
Understanding Saltwater Pools
How Saltwater Pools Differ from Traditional Chlorine Pools
Contrary to popular belief, saltwater systems are not chlorine-free. In a saltwater pool, your pool’s filtration system includes a saltwater chlorine generator (aka “salt cell”, “salt generator”, “salt chlorinator”, or “SWG”).
Pool-grade salt is dissolved into the water, and the salt cell uses electrolysis to change the dissolved salt into chlorine. The result is sanitized water, but with a lower chlorine concentration compared to traditional chlorine pools.
Benefits of Saltwater Pools
Consistent (and lower) Chlorine Levels: Many pool owners choose saltwater systems to reduce the amount of chlorine in their pool. Traditional chlorine pools require various chemicals that can cause skin irritation and eye discomfort. Saltwater pools, on the other hand, can provide a more pleasant swimming experience.
Cost-Effective Maintenance: Pool-grade salt is significantly cheaper than chlorine and other chemicals needed for traditional pools. Once you’ve purchased salt it also lasts for years, making day-to-day maintenance both easier and more affordable. Fun fact: once the salt-turned-chlorine sanitizes the pool water, it turns back into salt and then travels through the salt cell again, producing a near endless supply of chlorine!
Gentler on Skin & Eyes: Our clients with saltwater systems report that the water has a “softer” feel. In addition, the consistent (and generally lower) chlorine content can be gentler on your skin, eyes, and swimwear.
Drawbacks of Saltwater Pools
Higher Upfront Costs: While saltwater pools can be cheaper to maintain over time, they come with higher initial costs. Installing a saltwater chlorine generator can range from $1,000 - $2,500 or more. The salt cell will also need to be cleaned periodically and replaced every three to seven years (depending on use), which may require professional assistance from a pool service company.
Potential Corrosion: While there is some disagreement around this topic, saltwater may cause corrosion issues with some metals and natural stone, meaning careful consideration is needed for any stone surrounding your pool. To mitigate this potential risk, we install precast concrete instead of natural stones as your pool coping (the border around the outside of your pool). A plus to this however is that other concrete options can be incorporated into your design; we are particularly loving these by Concrete Collaborative!
Cold Weather Considerations: Saltwater chlorine generators stop producing chlorine when the temperatures dip (the Pentair system that we install will stop producing chlorine below 52°F). During the colder months, you will need to monitor your pool levels and supplement with chlorine as needed.
Common Saltwater Pool Myths Debunked
Myth 1: Saltwater Pools Have No Chlorine
Saltwater pools do contain chlorine. The difference is that the chlorine is generated by the pool equipment, eliminating the need to purchase liquid chlorine, tablets, or granules.
Myth 2: Saltwater Pools Are Maintenance-Free
While saltwater pools can require less maintenance than traditional chlorine pools, they are not maintenance-free. Regular monitoring of salt levels, pH, and chlorine levels is necessary. Additionally, the salt cell needs periodic cleaning and/or replacement.
Myth 3: Saltwater Pools Are Corrosive to Pool Equipment
Modern saltwater pools use a relatively low concentration of salt, and when properly maintained, the risk of corrosion is minimal. Maintaining proper water balance further mitigates this risk.
Improper water balance, even in a traditional chlorine pool, can be detrimental to your equipment!
Myth 4: Saltwater Pools Taste Like the Ocean
The salt concentration in a properly maintained saltwater pool is about one-tenth that of seawater. This means the water has a mild, almost undetectable saltiness, unlike the strong taste of ocean water.
In Conclusion
Choosing the right pool system depends on your priorities, whether it's reducing chemical use, minimizing maintenance costs, or ensuring a healthier swimming environment. Saltwater pools offer a gentler alternative to traditional chlorine pools with lower maintenance costs, but they come with higher upfront expenses and environmental and design considerations.
Regardless of your choice, maintaining a clean and safe pool environment is essential for an enjoyable swimming experience.
