Commercial & Industrial Water Softeners

Mueller Water supplies commercial and industrial water softeners — corrosion-resistant fiberglass (Series WSF) and high-pressure steel (Series WSS) — that remove calcium and magnesium hardness to protect plumbing, boilers, and process equipment. Systems are sized to each site’s hardness and flow, with installation, repair, and service across Houston, San Antonio, Austin, and DFW.

Mueller Water offers two premier water softening systems tailored to meet diverse application needs: the Fiberglass (Series WSF) and Steel (Series WSS).

The Series WSF is ideal for commercial environments where corrosion resistance and low maintenance are critical. Its lightweight, non-corrosive fiberglass design ensures long-term durability and easy installation, making it perfect for areas with aggressive water conditions. Common applications include restaurants, schools, office buildings, hotels, light manufacturing, and multifamily settings.

The Series WSS, crafted from durable steel, is built to withstand high pressures and demanding industrial conditions. With protective coatings for enhanced corrosion resistance, this system is the go-to choice for heavy-duty applications in laundries, healthcare facilities, hospitality, power plants, and manufacturing environments.

Water softening prevents scale buildup, enhances cleaning efficiency, prolongs equipment life, and improves overall water quality. Choose the water softener that best suits your environment and operational needs, and ensure your system's longevity with Mueller's trusted expertise.

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How to size a water softener

Sizing a softener comes down to how hard your water is and how much you use. Here's the method our engineers follow.

  1. Measure your water hardness. Get a hardness number in grains per gallon (gpg) from a lab test or test kit. Municipal reports list it in mg/L (ppm); divide by 17.1 to convert to gpg. Across much of Texas, hardness runs 15–25+ gpg.
  2. Add hardness from iron. If dissolved iron is present, add about 4 gpg of compensated hardness for every 1 ppm of iron, since the softener removes it too.
  3. Estimate daily water use. Multiply people or fixtures by typical usage (about 75 gallons per person per day for domestic use), or use metered data for commercial sites.
  4. Calculate the daily grain load. Multiply compensated hardness (gpg) by gallons used per day. Example: 20 gpg × 1,500 gal/day = 30,000 grains per day.
  5. Choose capacity and regeneration interval. Size the resin volume so the unit regenerates roughly every 3–7 days at that grain load, balancing salt efficiency against tank size. For continuous commercial demand, use twin-alternating tanks so soft water is always available.
  6. Confirm the service flow rate. Verify the rated flow (gpm) meets your peak demand, not just capacity — an undersized vessel can have ample capacity but inadequate flow.

The Fiberglass Water Softener System is designed to combat the challenges posed by hard water in commercial and industrial environments.

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The Steel Water Softener System is engineered to meet the demands of industrial environments where high pressures and extreme conditions are common.

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