See How CitraCharge™ Keeps Water Naturally Soft

The problem

Where Scale Comes From

Scale needs three things to form: hard-water minerals, high pH, and heat. When all three meet, calcium and magnesium settle onto your pipes, fixtures, and appliances, and the buildup grows a little every day.

The Solution

Meet CitraCharge: The Power of Citrus, Not Salt

CitraCharge is our patented citric-acid technology. As water passes through the cartridge, it changes the conditions scale needs, so minerals stay in your water instead of on your pipes. No salt, no electricity, and the calcium and magnesium stay right where they are.

Balances
CitraCharge gently lowers the water’s pH, so scale has a harder time forming.
Holds
Citric acid wraps around each calcium and magnesium ion. Bonded like this, they can’t stick to pipes or fixtures, so they flow right through.
Clears
Citric acid gently dissolves scale that’s already there.

Water flows through the CitraCharge™ cartridge.
Citric acid keeps calcium and magnesium suspended in the water.
Naturally soft water continues through your home with its healthy minerals intact.
Over time, CitraCharge™ also helps reduce existing scale buildup.

Verified by science

Proven Through Independent Testing

In an independent study conducted with Battelle Memorial Institute, NuvoH2O prevented more than 98% of scale buildup and helped water heaters reach full temperature more than 25% faster than untreated systems.

Average non-treated water heater had an average of 45.6 grams of scale.
NuvoH2O-treated water heater had an average of less than one gram of scale.

See Testing & Certifications

Scale mass > 98% less

Untreated: 100%
NuvoH2O: 2%

Heating rate > 25% faster

Untreated: 100%
NuvoH2O: 79%

Seconds per °F: 10.6 untreated vs. 8.34 treated

No saltNothing to haul or refill.
Minerals keptCalcium and magnesium stay in your water.
Zero wastewaterNo backwash or regeneration cycles.
No power neededCitraCharge™ works without electricity.
Protected appliancesLess scale inside water heaters, dishwashers and fixtures.

Explore Solutions See the NuvoH2O Difference

Does CitraCharge™ remove minerals from my water?

No. CitraCharge™ keeps calcium and magnesium in your water and prevents them from forming scale. That is different from a salt-based softener, which removes those minerals and adds sodium.

Will my water feel different?

You won't get the slippery feel of salt-softened water. What you should notice over time is less scale on fixtures, glassware and appliances.

Does CitraCharge™ filter contaminants?

CitraCharge™ is designed for scale. For chlorine, chloramine, sediment or iron, NuvoH2O systems pair CitraCharge™ with dedicated filtration stages. Learn about filtration →

Does it work with well water?

CitraCharge™ addresses hardness scale in both city and well water. Well water can also contain iron, sediment or bacteria, which need their own treatment, so we recommend testing your water first.

How often do I replace the cartridge?

About every 6 months for most homes, depending on water use and hardness. Auto-Ship can send replacements on schedule.

Is there a pH range where it works best?

CitraCharge™ is designed for household water with a pH between 7.2 and 8.4.