Magnesium Pool vs Freshwater Pool System: Myths Debunked

Choosing the right pool system can be confusing, especially with so many claims about mineral pools, freshwater systems, and chemical-free swimming. Magnesium pools and freshwater pool system are two of the most talked-about options, each promoted for their comfort, clarity, and “natural” swimming experience.

But with that popularity comes misinformation—and a lot of myths.

This guide dives deep into what’s true, what’s exaggerated, and what homeowners should really know before choosing between a magnesium pool system and a freshwater pool system.

Myth 1: Magnesium pools are completely chlorine-free

Debunked:
Magnesium pools still rely on a hydroxinator to generate low-level chlorine for sanitization. They use fewer chemicals but are not chlorine-free.

Myth 2: Freshwater pools contain zero chemicals

Debunked:
Freshwater pool systems use ultra-low levels of chlorine combined with oxidizers like UV or ozone—but still require basic chemical balancing.

Myth 3: Magnesium alone sanitizes the pool

Debunked:
Magnesium improves water softness and swimmer comfort, but it cannot disinfect on its own. Chlorine is still needed to kill bacteria.

Myth 4: Freshwater pool systems don’t need maintenance

Debunked:
While easier to maintain, freshwater pools still require:

• Regular water testing
  
  
• Filter cleaning
  
  
• Oxidizer system upkeep
  
  

No pool is maintenance-free.

Myth 5: Magnesium pools heal skin issues

Debunked:
Magnesium may soothe the skin, reduce itchiness, and improve hydration—but it is not a cure for conditions like eczema or psoriasis.

Myth 6: Freshwater pools feel the same as magnesium pools

Debunked:
They offer different experiences:

• Magnesium pools: Soft, silky, mineral-enhanced water
  
  
• Freshwater pools: Natural, crisp, ultra-low-chlorine water
  
  

Both feel great—but not the same.

Myth 7: Magnesium pools are chemical-free

Debunked:
They require:

• Minerals
  
  
• Chlorine (via hydroxinator)
  
  
• pH adjusters
  
  

Every pool, regardless of type, needs some form of sanitizing chemistry.

Myth 8: Freshwater pool systems are too expensive

Debunked:
While certain AOP or UV/ozone systems may cost more initially, operational costs are often lower due to reduced chlorine usage.

Myth 9: Magnesium pools damage equipment

Debunked:
Magnesium is equipment-friendly. Damage happens due to poor water balance, not mineral content.

Myth 10: Freshwater pools are unsafe because they use less chlorine

Debunked:
Freshwater systems use advanced oxidation processes, which are incredibly effective at breaking down contaminants-even at low chlorine levels.

Myth 11: Magnesium pools remove the chlorine smell completely

Partially Debunked:
They greatly reduce the chlorine smell, but improper pool maintenance can still cause mild odor.

Myth 12: Freshwater pools always look cloudy

Debunked:
Modern freshwater systems deliver exceptionally clear water, often clearer than traditional salt or chlorine pools.

Myth 13: Magnesium pools are difficult to convert to

Debunked:
Most saltwater pools can be upgraded to a magnesium system by replacing minerals and adjusting filtration—not a full rebuild.

Myth 14: Freshwater pools don’t work in hot climates

Debunked:
Advanced oxidation and low chlorine systems perform well in all climates when properly sized and maintained.

Myth 15: Magnesium pools and freshwater pools are the same thing

Debunked:
They are completely different technologies.

Magnesium Pool

• Uses magnesium & potassium minerals
  
  
• Generates low-dose chlorine
  
  
• Known for silky, comfortable water
  
  

Freshwater Pool System

• Uses UV, ozone, or AOP
  
  
• Very low chlorine levels
  
  
• Known for crystal-clear, natural-feeling water
  
  

Magnesium vs Freshwater: Side-by-Side Comparison

Final Takeaways

Both magnesium pools and freshwater pool systems offer a more enjoyable, gentler alternative to traditional chlorine pools but neither system is chemical-free or maintenance-free.

Choose a Magnesium Pool if you want:

• Luxurious mineral-infused water
  
  
• Skin-friendly swimming
  
  
• A spa-like experience
  
  

Choose a Freshwater Pool System if you want:

• Ultra-low chlorine
  
  
• Easy maintenance
  
  
• Crystal-clear water with a natural feel
  
  

Understanding the facts behind the myths ensures you make the right investment for your lifestyle, budget, and long-term pool enjoyment.

Ready to upgrade your pool or need expert guidance on choosing the right system?
Contact our pool specialists today for a free consultation and personalized recommendations.