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KING SOFT WATER COMPANY has been providing water treatment for nearly three decades. KING prides itself on our reputation of exceptional, unbeatable customer service, high quality products, and competitive pricing.

KING SOFT WATER is the only water treatment company to service, treat and maintain residential, commercial, industrial and new construction water and equipment. We also service and maintain most competitors systems.

KING has over 75 years combined experience and we are continually researching new and innovative ways to solve problem water. We believe in advancing our knowledge by ongoing education for our employees through Water Quality Association training and seminars.

We specialize in the treatment of any and all water problems such as but not limited to: Iron, nitrates, pH levels, hard water, corrosion, contaminants, bacteria. We also treat community wells and lake water.

H2O… the worlds most powerful, valuable and needed resource and yet the resource most taken for granted. It is vital for our very existence. It sustains us, cleanses us, nothing living can survive without it. That is why KING SOFT WATER takes water so seriously. Whether it is for drinking, bathing, cleaning, operating machinery, boilers, cooling towers, etc… we are committed to use the best water treatment for whatever the intended use. To find out more about water, please visit our water university.

No one surpasses our expertise and we always strive for excellence. We are a locally owned and operated company in Spokane, Washington. We are licensed in Washington, Idaho, Montana and Oregon. We sell our products in the US and Canada. Our service department responds within 10 hours in water emergency situations and within 48 hours for any other service needed.


We are committed to providing the highest quality and value in water treatment, products and service.

King Soft Water has built our reputation on providing a broad range of technical expertise and service in Residential, Commercial and Industrial Water Treatment.

King Soft Water pledges to treat all customers and employees with respect and integrity.


King, keeping present and future clients in mind, is always seeking the latest in water chemistry technology. Through this endeavor, we have been able to provide our clients with the best possible results.

At present, our water treatment consultant’s capabilities are:

  • Water Softener
  • Multi-Media Filtration
  • Ultra-filtration
  • Carbon Adsorption
  • Reverse Osmosis
  • Deionization
  • Glycol
  • Ozone
  • Ultra Violet Sterilization
  • TOC Reduction
  • Manganese Greensand Filtration
  • pH Adjustment
  • Water Reclaimation
  • Chemical Feed
  • Bag & Cartridge Filtration

  • Pressure Vessels
  • Water Softener Parts
  • Pumps
  • Logix Controllers
  • Filter Media
  • Adsorption
  • Storage Tanks
  • Flow Meters
  • Level Controls
  • Ion Exchange Resins
  • Reverse Osmosis Elements
  • Turn Key Package Systems
  • Ultra-Filtration Elements
  • Chemical Metering Equipment
  • Bag & Cartridge Filters
  • Bag & Cartridge Housing
  • Water Quality Meters

  • Residential
  • Potable Water
  • Microelectronics
  • Cooling Towers
  • Mine Runoff
  • Hydronic Loops
  • Biotechnology
  • Film Labs
  • Food Processing
  • Groundwater Remediation
  • Wells
  • Hotels, Restaurants, Schools
  • Plating
  • Chemical Manufacturing

  • Pilot Studies
  • Operator Control
  • Field Repairs
  • Training Programs
  • Laboratory Analysis
  • System Design & Engineering
  • Field Service Engineering
  • Salt Delivery

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