How do copper and silver ions compare to chlorine in terms of effectiveness against bacteria and algae.

Copper and silver ions offer several advantages compared to chlorine for controlling bacteria and algae in pool water:

Effectiveness Against Microorganisms

– Copper ions act as an effective algaecide, preventing algae growth.

– Silver ions function as a bacteriostat, slowing bacterial growth.

– The combination of copper and silver ions provides broad-spectrum antimicrobial action against bacteria, viruses, and fungi.

Residual Effect

– Copper and silver ions remain active in the water for extended periods, providing long-term protection against recontamination.

– This residual effect is longer-lasting compared to chlorine, which dissipates more quickly.

Biofilm Control

– Copper-silver ionization is effective at controlling biofilm in water systems.

– Copper remains within the biofilm, causing an ongoing residual effect against bacteria.

Effectiveness in Challenging Conditions

– Copper-silver ionisation remains effective in slow-running or still water.

– Its efficacy is not dependent on water temperature, unlike some other disinfection methods.

Reduced Chemical Usage

– Using copper-silver ionisation can reduce chlorine usage by up to 80% in some systems.

– This leads to fewer disinfection byproducts and less corrosion of plumbing systems.

Limitations Compared to Chlorine

– The deactivation rate of copper-silver ionisation is generally lower than that of chlorine.

– Effectiveness can be pH-dependent, with reduced efficacy at higher pH levels.

– Some microorganisms may develop resistance to silver ions over time.

The Detail

When water exits the pool, it travels through the suction line, passing through the pump, filter, and heater (if you have one), before reaching the ionizer. The ionizer is positioned along this water flow path to sanitize the water before it is returned to the pool via the return jets.

Inside the cell housing, you’ll find copper and silver electrodes. These electrodes are powered by the ionizer’s low-voltage DC current. When the current flows through these electrodes, it causes the copper and silver atoms to lose an electron, turning them into positively charged ions, known as cations. These cations (copper and silver ions) are then released into the water as it flows through the ionizer.

These copper and silver ions play a critical role in pool sanitation. Copper is known for its ability to prevent algae growth, while silver has strong antibacterial properties. Research has shown that ionizers can be more effective when used alongside low levels of chlorine, compared to using high levels of chlorine alone. This approach helps reduce the overall chemical load in the pool, making the water safer and more pleasant.

An important advantage of ionizers is their ability to leave a long-lasting residual disinfection effect in the water. Even as chlorine levels begin to drop, the copper and silver ions continue to sanitize the water, providing extended protection against harmful microorganisms, bacteria, and algae. This means your pool stays cleaner for longer, with fewer chemical treatments needed.

As the water flows through the ionizer, it carries these positively charged copper and silver ions into the pool. When these cations encounter negatively charged microbes, such as bacteria, they bond with them. This bonding process damages the microbial cell wall, leading to the destruction of the organism. The result is a cleaner, safer pool with fewer harmful pathogens.

For a more efficient and eco-friendly approach to pool sanitation, many pool owners turn to Naked Pools for their freshwater systems. These devices provide a high level of water purification while reducing the need for harsh chemicals, helping maintain clear, healthy water while minimising environmental impact.