Richard’s Custom Water Systems

A well-designed water treatment system, installed and maintained properly, can have enormous beneficial effects on your health. Our clients constantly tell us that purchasing a water purification system was one of the best decisions they ever made.

Richard Grassie started in the water industry over 30 years ago with the prime goal of educating clients on the vast topic of water quality. The mission began when, while working for a local water treatment company, he stopped by to visit a new client who had purchased a Reverse Osmosis drinking water purification system from him just one month prior. After testing the new system’s water purity level, Richard was shocked to find the new RO system he had sold was producing water well below the purity level of 99%. He then set out to find a complete impurity removal technology that he could personally guarantee. After extensive research, Richard settled on Aquathin technology and became an exclusive Aquathin pure water system dealer in the twin cities. He also developed a unique design to extend membrane longevity, offer more installation flexibility and faster flow rates at the faucet. Now 27 years later, Richard’s Custom Water prides itself in delivering unmatched water purity levels, improved access to pure water throughout the home and carefully installed smart technologies for all forms of water treatment. With no advertising, their exponential growth over the past two and a half decades comes directly from client referrals. 

After all, 72% of our body is water. And this is where our proprietary Aquathin technology and effective design is unique: we don’t just reduce contaminants, we eliminate them. 

Richard’s Custom Water is your best choice & best investment, for great tasting water & effective water treatment technologies!
We believe that not only should water be legally safe, but totally safe.


Aquathin exclusive authorized dealer

Aquathin Purification Systems are:

  • State of the Art Triple Filtration including Reverse Osmosis
  • Proprietary Process Removing all known contaminants found in water
  • Removal of Disease Causing Waterborne Micro-Organisms
  • WQA Gold Seal Certified S300
  • ISO 9001:2000 Certified
  • ISO 9001:2008 Certified
  • Certified Kosher
  • EPA EST. No. 52531-FL-01



President’s E Award Recipient
Prestigious Emerald Award
(preserving our environment)