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Rainwater Catchment

Rainwater Systems Designs


Close-up of a worn, metallic fountain pen nib on a black surface.RainBank Rainwater Systems designs potable and non potable rainwater catchment systems throughout Washington, Oregon, and Idaho.

RainBank’s experiencedteamprovides customers with an integrated, progressive approach to sustainable, premium water systems.

Our customers include;

  • Eco-friendlyhomeownersseeking to add rainwater collection or integrateinto plans for anew premiumorcustom built residence
  • Architectsdeveloping plans forpremium residential projects
  • High-endbuilding contractorsspecializing in custom builds
  • Commercial contractorswhere rainwater harvesting is a component tothe scope of the project

We work closely with our clients early on in the projectto insure the system design will meet the client’s needs and desires. Wespec onlyquality components, chosen based on our 15 years ofexperience,ensuring performance for years to come.

RainBank is a full service LLC with in-house engineering, design team, and licensed plumber. Our designs meet all county and state plumbing codes and their requirements. RainBank isfamiliar with the permitting process in most counties and will process the permitting to alleviatethe guesswork for our clients. Our designs include;

  • Calculations of domestic demands & supply, MIDs, & sizing
  • Drawings from down spout to storage, cistern placement, conveyance, filtration train, connection to household and civil
  • Complete list and specs of components along with manufacturer cut sheets
  • Operations and maintenance manual
  • County permitting from health department

We install our own designs to ensure the system will meet the high standards we have set in the industry. We offer inspections of other systems for evaluation, real estate and insurance transactions, always with a detailed written report including sampling results and photos for submittal.

RainBank’s team is ARCSA Accredited & ARCSA Inspector Specialists.

Need more info? Contact us below:

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Ken Blair
A rainwater collection systems designer and consultant, Ken has designed and installed residential and commercial systems, primarily in the northwest United States for more than 10 years and, in 2014, began consulting and managing builds in other states. Ken is an accredited ARCSA Professional Designer / Installer and Life Member, the Northwest Regional ARCSA representative and advisor to its education committee and is available to speak about Rainwater Collection Systems design and builds.

Ken is a United States Navy veteran, having served on active duty during the Vietnam War era.

A career entrepreneur, Ken created a new business focus with a commercial dive company in Hawaii in the mid 1980′s to respond to and clean up oil spills, oil spill equipment training, service and maintenance for the oil co-op service industry. Ken is passionate about having a positive impact on the environment and is also a founding director of BANK-ON-RAIN (2011-2014), whose mission is to create grassroots solutions for rainwater collection for consumption and agriculture in developing areas of the planet.