OneFlow, the better alternative to a water softener

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Coffee without compromise

Keep the minerals, lose the salt

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Is mineral scale ruining your plumbing?

Prevention is simple, and salt-free

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Environmentally Friendly Solution

Support water reuse with less salt down the drain

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No salt, chemicals, backwashing or electricity required

How Does it Work?
OneFlow® is the environmentally-friendly way to prevent scale buildup. Through Template-Assisted Crystallization (TAC), dissolved hardness minerals in the water join together, forming microscopic crystals on the surface of the OneFlow media. Once formed, these crystals detach from the media and flow freely through the plumbing system, unable to form hard scale on internal plumbing surfaces.

OneFlow maintains...

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water heaters

Without scale buildup on the heat exchanger, your water heater can efficiently transfer energy to the water, keeping energy bills in check.
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bathroom fixtures

Make scrubbing and polishing a thing of the past. Soap and shampoo residue rinses off quickly and more easily than with untreated water.
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coffee makers

Unlike salt-based water softeners, OneFlow treats water without affecting its taste. Enjoy your coffee just like usual.
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washing machines and dishwashers

Preventing scale buildup improves appliance lifespan without impacting the effectiveness of detergents.
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Why Choose OneFlow?

  • No salt or additional chemicals required
  • No backwashing required and zero discharge
  • Consistent scale control performance
  • Compact and simple installation
  • Safe for pipes and appliances
  • Minimal maintenance
  • Conserved water quality
  • Get alerts when it's time to replace your media (select systems)

Residential Systems

Scale prevention for your water heater or the whole home.



View all Residential Systems

Commercial Systems

Point-of-entry and point-of-use systems for use in commercial and institutional facilities.


View all Commercial Systems
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What to expect

  • Improves operating efficiencies of all water using appliances
  • Extends life of capital equipment
  • Retains important mineral such as calcium and magnesium
  • Virtually maintenance free, no salt or chemicals to constantly add
  • Reverses existing scale problems on internal plumbing systems

OneFlow Resources

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WaterReuse Study

A study by the WaterReuse Research Foundation revealed TAC to be the most effective salt-free scale prevention technology.

Learn More

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SSI Whitepaper

Learn how the Scale Saturation Index (SSI) is used to evaluate the efficacy of OneFlow media.

Download SSI Whitepaper

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Case Studies

Find out how OneFlow solved mineral scale issues for these commercial installations.

Learn More

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FAQ

Where OneFlow works well, where it should not be used, water quality requirements, and more are covered.

Read the FAQ

OneFlow Training Watts Works Online

OneFlow Online Training

Watts Works offers OneFlow courses that work with your limited schedule, available when and where it's convenient for you. Wholesalers, contractors, and engineers are invited to participate in our Learn & Earn program which provides tokens after successfully completing e-learning courses. Tokens can then be redeemed for lifestyle merchandise.

View Watts Works OneFlow Training