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  • Writer's pictureKristina Carroll

Harvesting Nature's Gift: The Ultimate Guide to Rainwater Harvesting for Sustainable Living

Updated: Jul 3, 2023

Rainwater harvesting is the process of collecting and storing rainwater for various purposes, such as landscape irrigation, gardening, and even household use.


Rainwater is one of Earth's most precious resources and soon to be one of man's most sought after commodities. Each year thousands of gallons of rainwater run off our rooftops and properties.


Rainwater harvesting is a way to capture, store, and use rainwater for your landscaping and gardening. Rainwater harvesting can vary from a simple barrel or bottom of your downspout to a larger tank with a focus on utilizing 100% of your rainwater. Choosing which system is right for you depends on the size of your home or business and how you wish to use your rainwater.


rainwater harvesting asheville nc

Purpose - Rainwater harvesting offers several benefits, including:

  • Water conservation: By collecting rainwater, you can reduce your reliance on municipal water supplies and help conserve precious freshwater resources.

  • Cost savings: Utilizing harvested rainwater can lower your water bills, especially for outdoor water needs like irrigation.

  • Sustainable living: Rainwater harvesting promotes sustainable practices by utilizing a natural resource and reducing the strain on existing water infrastructure.

  • Improved plant health: Rainwater is free of additives like chlorine and fluoride, making it ideal for watering plants and gardens.

Collection methods - Rainwater can be collected from various surfaces, such as rooftops, and directed into storage containers or tanks. Common methods include:

  • Roof catchment: Rainwater flows from the roof into gutters, which direct it into downspouts connected to a storage tank or collection system.

  • Surface catchment: Rainwater is collected from non-roof surfaces, like driveways or paved areas, using channels or trenches.

  • Rain barrels: These are small containers placed beneath downspouts to collect and store rainwater for smaller-scale uses.

rainwater system

Components of a rainwater harvesting system:

  • Catchment area: The surface, typically a roof, from which rainwater is collected.

  • Gutters and downspouts: Direct rainwater from the catchment area to a collection point or storage tank.

  • Filters and screens: Remove debris, leaves, and other contaminants from the collected rainwater.

  • Storage tanks or cisterns: Store the harvested rainwater for future use.

  • Overflow system: Diverts excess rainwater away from the storage tanks to prevent overflow.

Water treatment and usage considerations:


Depending on the intended use, harvested rainwater may require treatment. While rainwater is generally safe for irrigation and gardening, filtration and disinfection may be necessary for potable (drinking) water use. It's important to understand local regulations and guidelines regarding rainwater usage for different purposes.


Maintenance and system design:


Regular maintenance, including cleaning filters, inspecting gutters, and monitoring storage tanks, ensures the proper functioning of the rainwater harvesting system. System design should consider factors such as rainfall patterns, roof size, water demand, and local climate to optimize efficiency and effectiveness.


Benefits for the environment:


Rainwater harvesting contributes to sustainable water management and environmental conservation by reducing reliance on groundwater sources and minimizing stormwater runoff and erosion.



Remember to check local regulations and obtain necessary permits or permissions for rainwater harvesting systems, as requirements may vary depending on your location. Consulting with experts or professionals in rainwater harvesting can provide valuable guidance on system design, maintenance, and suitable practices for your specific needs.


Mountain Drainage Solutions is a local, family owned and operated, small business serving our neighbors here in Asheville, NC and surrounding areas.


Our experts will be able to provide you with a free on-site consultation to help you determine what rainwater harvesting is the best for your needs.


Contact us today for a free estimate!





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