You already know the shape, design, type of pool, and hardscaping you want for the pool in your backyard. What’s confusing you now is deciding the pool system to implement. As experts in custom pool design, installation, and maintenance, we come across many people who don’t know the difference between saltwater and traditional chlorine pool systems.
Saltwater and traditional chlorine pool systems primarily differ in how they sanitize pool water. Traditional chlorine systems require manual addition of chlorine compounds and use a pump and cleaning equipment to keep algae and bacteria from building up in the water and walls. Whereas saltwater systems convert salt into chlorine via electrolysis.
There’s much more to these pool systems than this initial comparison. Here’s more detailed information for chlorine and saltwater pools.
How does a chlorine pool work?
At the heart of a chlorinated pool system is chlorine, a chemical that acts as a powerful disinfectant. The chlorine added forms hypochlorous acid (a weak acid) that kills bacteria like E. coli, salmonella, and algae, preventing viruses like swimmer’s ear and diarrhea.
The chlorine levels in the pool must be constantly monitored and adjusted to maintain an optimal balance. Too little chlorine and the pool can become a breeding ground for bacteria, and too much chlorine can lead to skin, eye, and respiratory irritation for swimmers.
To administer chlorine, pool owners add it using different compounds, including sodium hypochlorite, calcium hypochlorite, chlorinated isocyanurates, and lithium hypochlorite. These compounds come in various forms, like tablets, powders, or liquids.
When the compounds meet water, they dissolve, releasing chlorine, and forming hypochlorous acid. It is this regular introduction of chlorine that ensures the pool remains a safe environment for swimming.
How does a saltwater pool work?
Like chlorine pools, saltwater pools sanitize water using chlorine; the difference is how chlorine is added to water. Saltwater pool systems have salt chlorine generators or salt cells responsible for electrolysis that convert sodium chloride (table salt) into chlorine.
Here’s how it works: Pool owners add salt to the pool water at the start. As the saltwater flows through the salt cell, it undergoes electrolysis. In this process, an electric current is passed through the saltwater, causing the salt molecules (NaCl) to break apart and form hypochlorous acid (HClO) and sodium hypochlorite (NaClO), both of which function as sanitizing agents, like chlorine.
Like traditional chlorine pools, saltwater pools also require monitoring to maintain appropriate salt and chlorine levels. However, since salt cells continually produce chlorine, adjustments and monitoring are less frequent.
Which pool system is better, chlorine or salt water?
With lower chlorine levels, swimmers are less likely to experience irritation in their eyes and skin in saltwater pools than in chlorine pools. Saltwater systems are safer than chlorine pools since owners don’t have to store or handle harsh chemicals. Although objective, the sensation of a softer feeling in saltwater is considered comfortable and luxurious.
Saltwater has its advantages but also a fair share of disadvantages. For instance, it requires a higher upfront cost making it more costly to build than traditional chlorine pools. Their systems are complicated and need experienced technicians, even for small issues. Finally, salt can damage construction materials, including underwater liners, lighting, heaters, and masonry work.
Is a saltwater pool easier to maintain?
Saltwater pool systems naturally help to inhibit algae growth. The steady and consistent chlorine production reduces the chances of algae thriving, ensuring the pool walls and water remain clean. This reduces the need for adding algaecides to the system.
The slow chlorine production also negates the need for frequent manual monitoring and adjustments to maintain suitable chlorine levels.
How much salt does the system require?
The general rule of thumb to determine the appropriate salt concentration in a saltwater pool is to add approximately 30 pounds of salt for every 1,000 gallons of water. This measure ensures that the pool water’s salinity is optimal for the salt generator to function efficiently. The exact amount needed is calculated using this formula “30/1,000 x [pool volume in gallons]”.
For example, for a pool with a capacity of 20,000 gallons, the calculation would be “30/1,000 x 20,000”. The result, in this case, would be 600. This means you would initially need to add 600 pounds of salt to establish the saltwater system in a 20,000-gallon pool.
Note that this is a general guide, and the specific salt level requirement can vary based on factors such as the specific model of the saltwater generator and the current salinity of your pool water. It’s also important to remember that only minor top-ups are necessary once the initial salt has been added since salt doesn’t evaporate or get used up in the chlorine generation process.
Hire a pro – Eden Design Group
Ultimately, the choice between a traditional chlorine and a saltwater pool system depends on various factors, each with its unique pros and cons. It’s crucial to consult with an expert like Eden Design Group to make an informed decision.
If you’re considering installing a pool, contact our professionals to discuss your options. As a reputable pool design, installation, and maintenance service provider, we can guide you to a solution that fits your needs, lifestyle, and budget. Don’t compromise on your dream pool – contact Eden Design Group today for a free consultation.
