Owning an above-ground pool is a fantastic way to enjoy summer, but maintaining the water's cleanliness and chemical balance can be a chore. Salt water generators offer a convenient and often gentler alternative to traditional chlorine methods, making pool ownership less of a hassle. This comprehensive guide explores everything you need to know about salt water generators for above ground pools, helping you decide if this system is right for you.
What is a Salt Water Generator for an Above Ground Pool?
A saltwater generator (SWG) is a device that converts ordinary table salt (sodium chloride) into chlorine. It works by using an electrolysis process, passing the pool water over a cell containing titanium plates. A low-voltage electrical current then separates the salt into sodium and chlorine ions. The chlorine ions disinfect the pool water, while the sodium ions remain harmlessly dissolved. This creates a naturally occurring chlorine that's less harsh on skin and eyes than traditional chlorine tablets or granules.
How Does a Salt Water Generator Work?
The process is surprisingly simple:
-
Salt Addition: You add salt to your pool water, typically to a concentration of around 3,000 parts per million (ppm). This is roughly equivalent to the saltiness of human tears.
-
Water Circulation: The pool pump circulates the water through the salt water generator.
-
Electrolysis: Inside the generator, the water passes over electrodes (typically titanium plates coated with a metal oxide). An electric current separates the salt into sodium and chlorine ions.
-
Chlorine Production: The chlorine ions react with water to produce hypochlorous acid (HOCl), the active sanitizing agent.
-
Sanitization: The chlorinated water then returns to the pool, sanitizing and disinfecting it naturally.
What are the Benefits of Using a Salt Water Generator for an Above Ground Pool?
-
Gentler on Skin and Eyes: Saltwater pools are generally softer and less irritating on skin and eyes compared to traditional chlorine pools. This is because the chlorine is produced naturally and is less concentrated.
-
Less Chemical Handling: You significantly reduce the need to handle and store harsh chemicals.
-
Convenient Maintenance: Once set up, the generator automatically produces chlorine as needed, requiring minimal intervention.
-
Crystal Clear Water: Many users report clearer water with a saltwater generator, as the chlorine maintains a consistent level of sanitation.
-
Longer Lasting Pool Equipment: Saltwater can reduce the corrosion of pool equipment, extending its lifespan.
How Much Does a Salt Water Generator Cost?
The cost of a saltwater generator for an above ground pool varies depending on the size of your pool and the features of the generator. You can generally expect to pay anywhere from a few hundred dollars to over a thousand. Remember to factor in the cost of installation and any necessary plumbing upgrades.
What Size Salt Water Generator Do I Need?
The correct size saltwater generator is crucial for effective sanitation. The size is determined by the pool's volume. Always consult the manufacturer's guidelines or a pool professional to determine the appropriate size for your specific above-ground pool. Choosing a generator that's too small will not adequately sanitize the water, while one that's too large can lead to excessive chlorine production.
How Do I Maintain a Salt Water Generator?
Maintenance is relatively straightforward. It typically involves:
-
Regular Cleaning: Cleaning the cell (electrodes) regularly removes mineral build-up which can impede chlorine production. The frequency varies depending on usage and water quality.
-
Salt Level Monitoring: Regularly check and adjust the salt level in your pool to maintain the recommended concentration.
-
Cell Replacement: The cell will eventually need replacing, typically every 3-7 years, depending on usage.
Can I Use a Salt Water Generator with an Existing Above Ground Pool?
Yes, you can usually retrofit a saltwater generator to an existing above-ground pool, but it will require some plumbing modifications. Consult a pool professional to ensure compatibility and proper installation.
What are the Disadvantages of Using a Salt Water Generator?
-
Initial Cost: The upfront cost of purchasing and installing a saltwater generator is higher than using traditional chlorine methods.
-
Cell Replacement Cost: The cells need periodic replacement, adding to the ongoing costs.
-
Potential for Corrosion: Although saltwater is generally less corrosive than traditional chlorine, there's still a risk of corrosion to some metal components of the pool equipment. Proper installation and maintenance are key.
-
Salt Buildup: In some cases, you may experience salt buildup on pool surfaces, especially in areas with high evaporation. Regular rinsing can mitigate this.
Choosing a saltwater generator for your above-ground pool can be a great way to improve your pool ownership experience. Weigh the benefits against the costs and consider consulting with a pool professional to determine the best solution for your specific needs and pool size. Remember, proper maintenance is crucial for optimal performance and longevity of your system.
