by
Casey Mare & Jeff Cope As the importance of sustainable living and responsible water management grows, harvesting rainwater has become an increasingly popular and eco-friendly practice. Collecting rainwater not only conserves a precious natural resource but also provides a readily available source of water for various outdoor needs. In this article, we will explore the benefits of rainwater harvesting and provide a step-by-step guide on how to collect rainwater at home. The Benefits of Rainwater Harvesting Conservation of Freshwater Resources: Rainwater harvesting reduces the demand on municipal water supplies, helping to conserve freshwater resources. This practice is particularly valuable in regions prone to droughts and water scarcity. Lower Water Bills: By using harvested rainwater for tasks such as watering your garden or flushing toilets, you can significantly reduce your water consumption, leading to lower water bills. Reduction in Stormwater Runoff: Collecting rainwater also helps mitigate the negative impacts of stormwater runoff, which can carry pollutants into local water bodies. Harvesting rainwater keeps excess water from overwhelming drainage systems. Self-Sufficiency: Rainwater harvesting promotes self-sufficiency by providing an alternative water source during water shortages or emergencies. How to Collect Rainwater at Home Gather the Necessary Supplies: A roof or catchment area: A roof with gutters is an ideal catchment area. Gutters and downspouts: To channel rainwater into a collection system. A storage tank or barrel: Select a food-grade, UV-resistant tank or barrel. Go big, a 2,000 gallon tank can support a 600 square foot vegetable garden through a normal summer in the Willamette valley. Fifty gallon barrels and fun, but may only provide enough water to care for your house plants. Screen or filter: To prevent debris and contaminants from entering the collection system. Overflow system: Redirect excess water away from the foundation to prevent flooding and preferably into the municipal rainwater drainage system. If you live in a rural area without a public drainage system in place move the overflow into a drainage ditch, or raingarden. First flush diverter (optional): Collect and discard the initial runoff, which may contain pollutants, and debris. Calculate Rainwater Potential: Determine the size of your catchment area (roof) in square feet. Estimate annual rainfall in your area (inches). Use a simple formula: Annual Rainfall (in inches) x Catchment Area (in square feet) = Potential Rainwater Harvest (in gallons). A conversion of cubit feet to gallons may be necessary. There are 7.48 gallons in a cubit foot of water. Install Gutters and Downspouts: Ensure gutters are properly sloped towards the downspouts. Install a downspout filter or leaf guard to minimize debris entering the system. Set Up a Collection System: Position your storage tank or barrel near a downspout. Connect the downspout to the tank using a downspout diverter. Install an overflow system to prevent water overflow during heavy rains. Screen or Filter Installation: Place a screen or filter at the entry point of the collection system to prevent debris, leaves, and insects from entering. Regular Maintenance: Clean gutters, screens, and filters regularly to ensure optimal water quality. Inspect the storage tank for leaks or damage. Empty and clean the tank periodically to prevent stagnation and bacterial growth. Use and Distribution: Install a spigot near the bottom of the tank for easy access to collected water. Use harvested rainwater for various purposes, such as watering gardens, lawns, or indoor plants, and for non-potable household needs. Purchase a pump that you can hook your hose up to so you can increase the water pressure and delivery if needed. Conclusion Rainwater harvesting is a sustainable and environmentally responsible practice that benefits both homeowners and the planet. By collecting rainwater, you can reduce your reliance on municipal water sources, lower water bills, and contribute to water conservation efforts. It's a simple yet effective way to make a positive impact on the environment while meeting your water needs. Whether you're a seasoned eco-conscious homeowner or just getting started with sustainable living, rainwater harvesting is a valuable practice worth considering, and is fun to do.
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