The Federal Way School District uses its RainBank installed rainwater collection system for bus and district vehicle washing. With eight 2,500 gallon tanks yielding 20,000 gallons of storage, there will be ample amounts of water for the tasks during the school year and rainy season, plus a surplus for the summer for irrigation of new plantings.
With well over 10,000 square feet of roof and an average annual rainfall of 37 inches, the school should go into the summer with full tanks and have an added 2-4 inches of rain in the summer to help keep the water storage tanks full. Ken Blair says “I like seeing more innovative ways to utilize rainfall in our region. You can’t find a better climate for rainwater harvesting than the Pacific North West”.