Here you'll find a complete guide to all things RainXchange™. RainXchange™ rainwater storage systems include catchment tanks and cisterns that harvest and reuse rainwater, helping the improve environment through sustainable design. RainXchange™ catches and stores water for a variety of uses, including landscape irrigation, water for laundry use. washing your car, topping off water features or pools, and can even be used to protect your property from wildfires. Click any of the links below to download free brochures, installation instructions, and system illustrations.