What Is a Naked Pool System and How It Works

Chlorine handling, the sharp smell that lingers in your hair, and skin that feels tight after a swim are the everyday frustrations that push Australian pool owners to look for a better way to sanitise their water. Left unaddressed, those irritations are enough to keep families out of a pool they paid good money for. That search leads to the naked pool: a freshwater system that delivers a gentler, more natural swimming experience on a fraction of the chemicals. This guide explains exactly what a naked pool is, how the system works, what it costs, and how to decide whether it suits your pool. Where the marketing oversimplifies, it sets the record straight.

What Is a Naked Pool?

A naked pool is a freshwater pool, kept as close to natural water as possible with very low levels of chlorine, salt, and other chemicals. Rather than relying on a strong chemical dose to keep the water safe, the system uses minerals and a gentler sanitising process to do most of the work.

A Freshwater Approach to Sanitation

The result is water that feels noticeably different. There is no heavy chlorine smell, no sticky film on the skin, and no faded swimwear. For households with sensitive skin, or anyone who finds traditional pools harsh, that softer experience is the appeal. It is gentle on swimmers and, because the chemical levels are so low, gentle on the environment.

How It Differs From Salt and Chlorine Pools

A traditional chlorine pool relies on manually added chlorine held at 1 to 3 ppm. A saltwater pool adds thousands of parts per million of salt and converts it to chlorine at the same levels. A naked pool does neither at scale. It runs on silver and copper ions backed by a trace of chlorine, which is why the water feels closer to fresh than to either alternative.

How Does a Naked Pool System Work?

A naked pool system looks much like a saltwater chlorinator on the equipment pad, but it treats the water in a fundamentally different way. Each component has a defined role.

The Control System and Electrode Assembly

The system is built around two parts: a control box that regulates the process, and an electrode assembly that does the sanitising. Instead of converting salt into chlorine the way a saltwater chlorinator does, a naked pool system passes water across silver and copper anodes to ionise and oxidise it, with the control box governing exactly how much of each ion enters the water.

The Silver Anode

The silver anode releases silver ions into the water as the system runs. Silver has been used to keep water clean for thousands of years; the Romans and Greeks lined their water vessels with it for exactly this purpose. In a pool, the silver ions bond with bacteria and destroy them as they circulate. Unlike chlorine, silver ions are not broken down by heat or UV light, so they keep working through the heat of an Australian summer without a stabiliser such as cyanuric acid.

The Copper Anode

The copper anode handles algae. Copper has long been used to stop algae growing in stored water, and the naked pool system applies that principle by releasing a controlled dose of copper ions into the pool. Those ions suppress algae before it takes hold, which removes the need for constant algaecide. To see what happens when algae control fails, read our guide on why your pool turns green and how to fix it.

The Oxidiser and Trace Chlorine

The final stage is oxidation. As water passes through the electrode cells, the system generates tiny amounts of chlorine alongside other oxidising compounds. These break down what the silver and copper ions do not, such as body oils, sunscreen, and other organic matter swimmers bring into the pool. The chlorine produced here is minimal, far below what a conventional pool runs on, but it is essential to keeping the water genuinely safe.

Is a Naked Pool Really Chlorine Free?

This is the point the marketing around freshwater pools tends to blur, and it deserves a straight answer.

What "Freshwater" Actually Means

A naked pool is not truly chlorine free. The system does not eliminate chlorine; it produces it, generating low levels on site through the oxidation process. The sanitiser keeping the water safe is still hypochlorous acid, the same active agent found in any chlorinated pool. The difference is the amount and how it is delivered. A traditional pool typically holds free chlorine between 1 and 3 ppm, while a naked pool runs at much lower levels, often around 0.5 ppm, with the silver and copper ions and the additional oxidising compounds carrying the rest of the load.

Why the Water Feels Different

The reason the water feels so different comes down to chloramines. The harsh "pool smell" people associate with chlorine is not chlorine itself; it is chloramines, which form when chlorine reacts with sweat and other organic matter. With far less chlorine in the water and a fresh, continuous supply, chloramine buildup falls dramatically. Chlorine remaining part of the process is not a weakness. It is the reassurance that the pool is properly protected.

Naked Pool vs Saltwater vs Traditional Chlorine

Each sanitising method has its place. This is how a naked pool compares with the two most common alternatives:

The Advantages of a Naked Pool System

The appeal of a naked pool comes down to a clear set of benefits.

Gentler on Skin and Eyes

With chlorine running so low, the water is far kinder to swimmers. That is a genuine advantage for anyone with eczema, psoriasis, or chlorine sensitivity, and it removes the red eyes and dry skin that often follow a swim in a heavily chlorinated pool.

Lower Running Costs

Because silver and copper ions are not burned off by UV or heat, the system uses fewer chemicals and needs no stabiliser. Over a season, the reduced spend on chlorine, algaecide, and balancing chemicals adds up to a meaningful saving.

Better for the Environment

The chemical levels are low enough that backwash water can often be reused in the garden rather than sent to the sewer. For households conscious of water use, that is a practical benefit on top of the lower chemical footprint.

Less Corrosion and Longer-Lasting Equipment

Low chemical levels are easier on pool fittings, pumps, robotic cleaners, and swimwear. Equipment around the pool lasts longer, and bathing gear holds its colour rather than fading from constant chlorine exposure.

A True Fresh-Water Feel

There is no sticky residue and no strong smell, just water that feels like stepping out of the shower. It is the single benefit owners notice first and the one that keeps them swimming.

The Disadvantages of a Naked Pool System

The drawbacks are few, but they are worth knowing before committing.

The Upfront Investment

A naked pool system costs around $4,000 to install, a significant investment, particularly if you already run a working saltwater chlorinator that would be replaced in the switch.

Ongoing Maintenance Still Applies

This is not a set-and-forget pool. You still test the water and may need to top up chlorine manually during heatwaves, heavy use, or after rain, when demand on the system briefly outpaces what it produces.

Electricity Use

Like any chlorinator, the unit draws power to operate. The draw is modest, but it factors into running costs and should be accounted for alongside the chemical savings.

How Much Does a Naked Pool System Cost?

A naked pool system carries a higher entry price than the alternatives, but the running costs tell a different story.

Upfront Installation

Expect to pay in the region of $4,000 to have a naked pool system installed. That headline figure gives some owners pause, and for a pool with a recently installed saltwater chlorinator, the timing may not be right.

Long-Term Running Costs

Measured over time, the picture improves. The reduced spend on chlorine, algaecide, stabiliser, and other chemicals adds up year on year, and lower equipment corrosion extends the life of the gear around the pool, so the system recovers much of its cost. For a new pool, or one still dosed manually with chlorine, the case is stronger again. The same long-term logic applies to a quality pool cover, where the upfront spend is offset by years of lower running costs. Our guide to pool cover costs in Australia sets out how that investment pays off.

Maintaining a Naked Pool

A naked pool needs remarkably little balancing compared with a traditional pool.

The Three Levels to Monitor

Where a traditional pool carries a long list of levels to track, a freshwater system asks you to watch just three:

• pH
• Alkalinity
• Calcium hardness

Because pH and alkalinity move together, you are effectively watching pH and calcium hardness, which is about as low-maintenance as pool care gets. Staying on top of your water chemistry is the single most important habit for keeping the system running as designed.

Products to Keep Off Your List

A few products should come off the shopping list once you switch, because they interfere with the system:

• Zeolite filter media traps copper ions, so replace it with traditional pool sand or glass media.
• Stabilised chlorine and cyanuric acid are not needed and will interfere with how the system runs.
• Flocculants clash with the process and are unnecessary, since the system binds fine particles for the filter to catch.

How Elite Pool Covers Can Help

A naked pool system keeps water clean on minimal chemicals, and it performs at its best with a quality pool cover working alongside it. Because the entire point is to run at very low sanitiser levels, anything that reduces demand on the system delivers a direct return.

Reducing the Load on Your System

Every leaf, speck of pollen, and trace of dust that enters the pool adds to the workload the silver, copper, and trace chlorine must handle. A leaf and debris pool cover keeps that contamination out, so the low-chlorine system is not constantly working against fresh organic matter. It also blocks the sunlight that fuels algae, complementing the copper ions already doing that job. Our guide on why you need a pool cover sets out the full picture.

Holding Your Water Chemistry Stable

Naked pools depend on a stable, balanced environment, and a solar pool cover holds that balance by cutting evaporation and slowing the loss of minerals and chemicals from the water. Less evaporation means less topping up and less drift in pH and calcium hardness, which is exactly the consistency a low-chemical system relies on.

Australian-Made Covers Built to Last

Elite Pool Covers has manufactured premium Australian-made covers since 1989, and was the first Australian company to design and build an automatic pool cover. Whether you need a solar cover, one of our pool cover rollers to handle it with ease, or a fully automated pool cover for effortless daily operation, every product is engineered to withstand tough Australian conditions. Browse the full range of pool covers to find the right match for your pool.

Frequently Asked Questions