Our History

RainSoft’s History and Innovation Timeline

1953

RainSoft Is Founded

John Grayson starts RainSoft in the basement of his house in Bensenville, IL. Soon after RainSoft moves to its first corporate facility in town.

1954

First RainSoft Cabinet Softener

Grayson develops first cabinet softener – the Apollo.

1957

More Manufacutring Space

Solid growth requires more manufacturing space, and in 1957, RainSoft moved into their 2nd facility in Elk Grove Village.

1963

RainSoft Makes Big Strides

The early 60’s saw RainSoft make big strides in terms of growth, brand awareness and becoming a leader in the industry. The company saw itself move into its 4th facility in a decade.

1983

First Computerized Control Valve

Industry’s first computerized control valve introduced – the RainSoft “Q” Valve

1984

Classic Apollo Cabinet

Classic Apollo Cabinet Water Softener introduced

1985

First RainSoft RO

First RainSoft RO Drinking Water System introduced

1993

Record Breaking Sales

40-year record. 4,500 softeners, 1,500 RO units in one month.

1995

Next Generation RO Launch

Next generation RO introduced

1998

Composite Valve

Composite valve introduced

2006

EC4 Water Conditioning System

EC4 Water Conditioner introduced

2006

OxyTech Iron Removal Filter

OxyTech Iron Removal Filter introduced

2011

Ultrefiner II RO

RainSoft next generation Ultrefiner II RO introduced

2016

RainSoft Moves To Roselle, IL

RainSoft moves into state-of-the-art facility in Roselle, Illinois USA

2019

Pentair Acquisition

Pentair acquires RainSoft

Water Insights

Know Your Water

What's In My Water?

Whether your water comes from a well or municipally treated source, it may contain impurities that cause it to taste or smell bad or create other problems in your home.

Why Should I Test My Water?

A reliable water analysis is the only way to identify the specific impurities in your water that make it less than ideal for household use.

How Can I Test My Water?

You can buy a DIY water testing kit, but you’ll get more reliable results and helpful solutions with a complimentary in-home water test from the experts at RainSoft.

Schedule Your

Free Water Analysis

Get a free in-home consultation with a RainSoft water conditioning expert.

What’s in your water? A RainSoft test is the first step toward resolving your water woes. We’ll send a water treatment expert to your home to test your tap water, explain the results, and recommend the best solutions to meet your specific needs.

Get a Free Water Test