Copper-Only Pool Floaters vs. Copper-Silver Ionisation: What's the Real Difference?
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If you've been comparing pool ionisers, you've probably come across cheap copper solar floaters like Floatron or Sun Shock sitting alongside systems like ClariTech. They look similar. The price difference is significant. So what exactly are you paying for?
The answer comes down to one element: silver — and what it does that copper simply can't.
Copper-Only Floaters: Floating Algaecides, Nothing More
Copper solar floaters work by releasing copper ions (Cu²⁺) into your pool water as sunlight powers a small ionisation cell. Copper is an excellent algaecide — it disrupts photosynthesis and breaks down algal cell walls, keeping green, yellow, and black algae from taking over.
But here's the limitation most manufacturers don't advertise: copper ions don't kill bacteria.
That means pool owners using copper-only floaters still need to maintain standard chlorine levels — typically 1.0–3.0 ppm — to keep the water biologically safe. The floater stops green water, but invisible pathogens like E. coli, Pseudomonas, viruses, and fungi remain entirely untouched by copper alone.
In short: a copper-only floater solves half the problem.
What Silver Changes Everything
ClariTech uses a dual copper-silver ionisation system, and the addition of silver (Ag⁺) is what transforms it from an algae floater into a true water purification system.
Here's how the two metals divide the work:
| Copper (Cu²⁺) | Silver (Ag⁺) | |
|---|---|---|
| Target | Algae | Bacteria, viruses, fungi |
| Mechanism | Disrupts photosynthesis, breaks down algal cell walls | Attaches to bacterial cell walls, disrupts DNA, deactivates reproduction |
| Result | Visually clear water | Biologically safe water |
Silver ions are a clinically recognised bactericide and disinfectant — used in medical wound dressings, water purification systems, and food-safe surfaces for exactly this reason. In your pool, silver provides continuous, round-the-clock microbial control that chlorine alone struggles to match on hot, sunny days (UV rays break chlorine down rapidly; silver and copper ions remain completely stable in sunlight).
The Synergistic Advantage
Copper and silver don't just work in parallel — they work better together. Copper ions weaken the outer membranes of micro-organisms, allowing silver ions to penetrate and destroy bacterial cells faster than either metal could achieve alone. It's a tag-team sanitation system.
Lower Chlorine. Softer Water. Real Results.
Because silver actively handles bacterial sanitation, ClariTech users can safely reduce their free chlorine levels to around 0.5 ppm — a fraction of what copper-only or traditional chlorine pools require.
The practical difference for swimmers:
- No burning eyes or irritated skin
- No harsh chemical smell
- Softer, gentler water that's still completely safe
ClariTech vs. Copper-Only Solar Floaters: Summary
| Copper-Only Floater | ClariTech Dual-Action | |
|---|---|---|
| Algae control | ✅ Yes | ✅ Yes |
| Bacterial sanitation | ❌ No | ✅ Yes |
| Virus & pathogen control | ❌ No | ✅ Yes |
| Chlorine reduction | Minimal | Down to ~0.5 ppm |
| UV stable | ✅ Yes | ✅ Yes |
| Full purification system | ❌ No | ✅ Yes |
The Bottom Line
A copper solar floater is better than nothing — but it's an algae tool, not a sanitiser. If you're serious about reducing chemicals while keeping your pool genuinely safe to swim in, you need both copper and silver working together.
ClariTech isn't a more expensive version of a solar floater. It's a fundamentally different category of product.
Ready to make the switch? Explore the NEC-20 (above-ground and smaller pools) or the NEC-2000 (large in-ground pools) to find the right system for your pool.