When it comes to pool care, one of the biggest debates is whether a saltwater pool or a traditional chlorine pool is better. Some people assume a salt pool is chlorine-free, but that’s not quite true—unless you’re planning on adding enough salt to feel like you’re holidaying in the Dead Sea. In reality, saltwater pools generate their own chlorine through a process called electrolysis, so you’re still swimming in sanitised water—just with less manual handling of chemicals.
Why Sanitise?
No matter what type of pool you have, sanitisation is essential to keep the water safe, clean, and free from bacteria and algae. Without the right sanitiser, pools can quickly become a breeding ground for contaminants brought in by swimmers, debris, and even the weather. Chlorine—whether manually added or generated through a salt chlorinator—works to break down organic matter, kill harmful bacteria, and prevent algae growth. Regular sanitisation not only keeps your pool looking crystal clear but also ensures a safe and enjoyable swimming environment for everyone.
How Does Salt Chlorination Work?
A salt pool isn’t just ocean water in your backyard—it still contains chlorine, but instead of adding it manually, a salt chlorinator converts dissolved pool salt into chlorine through electrolysis. This means chlorine is continuously produced, keeping your pool sanitised without the need for manually adding chlorine as often.
The result? Softer-feeling water, less need for chemical handling, and a more consistent chlorine level—without the hassle of lugging chlorine buckets around like a weightlifting competition.
Benefits of a Saltwater Pool
- Gentler on Skin and Eyes – No more stepping out of the pool feeling like you’ve been swimming in a vat of pool chemicals. Saltwater is softer on the skin and less irritating to the eyes.
- Less Chemical Handling – Say goodbye to frequent chlorine additions. Your chlorinator does the work for you, so you can spend less time measuring chemicals and more time floating.
- Consistent Chlorine Levels – Since the system produces chlorine automatically, you’re less likely to experience chlorine spikes or dips.
- Lower Long-Term Costs – The upfront cost is higher, but you’ll likely save on chemical expenses over time.
- Low-Maintenance Lifestyle – While saltwater pools still need care, the overall day-to-day upkeep is simpler. With fewer dramatic chemical swings and less hands-on dosing, it’s a more relaxed way to keep your pool swim-ready.
Downsides of a Saltwater Pool
- Calcium Buildup and Staining – Saltwater pools can be more prone to calcium scaling, especially if your calcium hardness is too high. This can lead to staining or “plating out” on surfaces and equipment. If you’re topping up with bore water, regular water testing is essential to keep levels in check.
- Corrosion Risk – Salt is corrosive by nature, and over time it can cause wear on metal fittings, pool fixtures, and even some heating systems if not properly managed.
- Initial Setup Cost – While running costs are lower, the upfront investment in a salt chlorinator and proper installation is generally higher than traditional chlorine systems.
- Maintenance Still Matters – Saltwater pools still require regular water testing and chemical balancing—“set and forget” isn’t a thing. Neglect can lead to poor water quality just like any other pool.
- Cell Replacement – The chlorinator cell doesn’t last forever. You’ll typically need to replace it every 3–7 years, which can be a few hundred dollars depending on the system.
Regular Salt vs. Magnesium Salt: What’s the Difference?
When it comes to saltwater pools, you’ve probably come across the choice between regular pool salt and magnesium salt. Both work with a salt chlorinator to generate chlorine, but magnesium salt offers additional benefits. It helps soften water, improve clarity, and is gentler on skin and hair compared to standard pool salt. Some pool owners also find it gives the water a silkier feel. While regular salt is more budget-friendly and effective for standard chlorination, magnesium salt is a great option if you want added comfort and a touch of luxury in your pool.
Benefits of a Traditional Chlorine Pool
- Lower Upfront Costs – No upfront expense on a chlorinator needed, making it the more budget-friendly option from the get-go.
- More Control Over Chlorine Levels – You can manually adjust chlorine levels based on weather, usage, and whether or not your kids just had 10 friends over for a pool party.
- Easier Repairs & Maintenance – Traditional chlorine systems don’t rely on a chlorinator, meaning there’s one less expensive piece of equipment that can break down.
- Effective for All Pool Types – Saltwater can be tough on certain materials, whereas chlorine pools work well with all pool finishes and equipment.
- Fast-Acting Sanitisation – Traditional chlorine works quickly to kill bacteria and control algae, making it a reliable option when you need to get your pool back in shape fast.
Downsides of Traditional Chlorine
- Ongoing Costs Add Up – While it may seem cheaper upfront, traditional chlorine can work out more expensive over time due to the need for regular top-ups and balancing chemicals.
- More Effort Required – You’ll need to manually dose, test, and balance the water more frequently, which can be time-consuming and easy to get wrong.
- Fluctuating Chlorine Levels – Without automation, it’s harder to maintain consistent sanitiser levels, especially during extreme weather or periods of high use.
- Storage and Handling – Keeping chlorine on hand means dealing with strong-smelling chemicals and safe storage requirements.
- Can Cause Irritation – When not balanced correctly, traditional chlorine is more likely to lead to red eyes, itchy skin, or that strong “chlorine” smell.
It’s important to note that note all chlorine is the same. Cheaper chlorine, such as liquid chlorine & Calcium Hypochlorite, contain additives like whiteners and have a different percentage of chlorine per kg/litre so can be more expensive in the long run. Calcium Hypochlorite can also increase calcium levels that may then plate out onto your pool surface. Buying quality chlorine will ensure you don’t run into these problems.
Which One is Right for You?
Both saltwater and chlorine pools have their perks. If you want low-maintenance, softer-feeling water, and don’t mind the upfront cost, a salt pool might be your best bet. If you prefer more control, lower setup costs, and a system that’s been keeping pools clean for decades, a traditional chlorine pool is the way to go.
At the end of the day, it comes down to personal preference, budget, and how much effort you want to put into pool care. If you’re still undecided, come see us at Poolside Orange—we’ll help you figure out which option suits your pool and lifestyle best (without making you feel like you’re sitting an exam on water chemistry).
