Category Archives: Commercial Rainwater Harvesting

The Wonder of it All

You may have read about the revamped Wonder Building in downtown Spokane, Washington.

According to a recent article, “,,,nearing completion of a $15-million restoration and expansion of the historic Wonder Bread Bakery at 821 West Mallon in Spokane, WA. Formally known as the Spokane-Continental Bakery, the early 1900s-era building is in the final stage of a transformation into Wonder Spokane, a roughly 112,000-square-foot creative office building.”

Here is a video of RainBank’s inside look at the water detention tanks we’re installing in this historic building, expected to open to the public this summer as a 12,000-square-foot retail market, offering food and artisanal products, onsite parking and a dramatic rooftop deck overlooking downtown and Riverfront Park.

The four 6,500 gallon, dome roofed tanks will capture stormwater coming off of the roof and will be infiltrated onsite.

Click here to see more steel water tank projects from RainBank. Don’t forget to contact us with questions about your next project.

(Photo credit Connect Media)

Affordability For Steel Water Tanks

RainBank Rainwater Systems of Seattle has brought back affordability and excellence in the steel water tank market in Washington State.

With over 15 years of experience building other manufacturers’ corrugated steel water tanks, RainBank has teamed up with Contain Water Systems Inc. to set a new standard of ” building relationships as strong as steel”.

A 20 year warranty on all Contain water tanks is unmatched by other manufacturers. On-site project management by RainBank’s chief operations manager assures a safe, on time, quality install. Optional lifting capabilities allow construction in the most difficult circumstances. The industry’s only through the liner access panel option eliminates confined space entry.

Whether your project is commercial or residential, rainwater collection or fire suppression, a Contain Water Systems corrugated water tank sold and installed by RainBank Rainwater Systems is a solid choice.

Use the convenient form below to contact us today.

Affordability With Steel Tanks

30 degree roofSeattle based RainBank Rainwater Systems and Contain Water Systems Inc. have brought back affordability and expertise to the steel water tank market in the Seattle area. No matter if your project is commercial or residential, rainwater harvesting, or fire suppression, costs are always a concern for any project. Many dealers are third or even fourth party in steel water tank sales, of course each adding their markup.

As a Contain Systems, Inc. distributor, there is no middleman. We sell Contain Tanks to dealers and the public. We install what we sell. We don’t use subcontractors and we stand behind our product line. Contain Water Systems Inc. water tanks carry a 20 year warranty when installed by RainBank Rainwater Systems or a certified installer. 

RainBank’s president has more than 15 years experience in commercial and residential designs, installations, and sales of rainwater collection systems and is an ARCSA lifetime member,  ARCSA Northwest Regional Representative, ARCSA  Accredited Professional and an ARCSA Inspector Specialist. RainBank has put together an experienced team to provide customers with an integrated, progressive approach to sustainability, premium water systems. In-house engineering, licensed plumber, and experienced installers takes the guesswork out of a project for the architect, engineer, contractor and owner. 


DESIGNcomplete systems with performance specifications.

ENGINEERING & PERMITTING to meet all legal requirements from county and state agencies; cost effective, fast & hassle free.

INSTALLATION includes onsite management for installation of rainwater harvesting and storage systems.

CONSULTING is available throughout the US Including Hawaii, for all rainwater harvesting systems.

FEASIBILITY STUDY is the first step to take if you aren’t sure about whether or not a rainwater collection system is right for your project. Contact us for a quote.  

PACKAGING customized kits & blueprints for do-it-your-selfers, those in remote locations, tract housing developers and large companies.

PRODUCTS:  RainBank is a dealer for the following rainwater system tanks and components:

  • Contain steel water tanks (carrying a 20 year warranty)
  • WISY Products
  • Davey pumps
  • Premier Plastics water tanks
  • National water testing
  • GC Solenoid valves
  • Filter cartridge replacements
  • Tuffy screen basket liners

Contact RainBank about your project today.