Collecting rainwater in Nevada is legal but regulated under state water rights laws, often requiring permits for large-scale systems while allowing personal use without one in most cases. Proper system design, filtration, and storage are key to safely using harvested rainwater for non-potable purposes like irrigation.
Assembly Bill 138 legalized rainwater collection for domestic use, provided it does not impair existing water rights. While homeowners can collect rainwater for nonpotable uses without a permit, larger systems may require approval.
Permit Requirements and Exemptions
No permit needed: If rainwater is used for nonpotable domestic purposes like irrigation, toilet flushing, evaporative cooling, or car washing.
Permit required: If rainwater collection systems exceed a certain size or if collected water is intended for potable use.
Check zoning laws: Some municipalities or homeowners’ associations (HOAs) may have restrictions on the placement or visibility of rainwater collection systems.
Benefits of Rainwater Harvesting
With municipal water costs rising, homeowners and businesses can significantly cut expenses by using harvested rain for irrigation, toilet flushing, and even evaporative cooling.
Droughts are becoming more frequent, making stored rainwater a lifeline during water restrictions. Having a personal supply ensures resilience, particularly in regions with unreliable infrastructure. Beyond personal use, capturing rainwater helps mitigate stormwater runoff, preventing soil erosion and protecting local waterways from pollution.
It’s not just about conservation; rainwater is naturally soft, meaning it won’t cause scale buildup in appliances like washing machines and dishwashers, extending their lifespan. Additionally, home resale values rise when properties feature sustainable systems, attracting eco-conscious buyers.
In rural areas, rainwater storage can be a critical fire suppression resource, providing emergency water access when municipal pressure drops. Plus, tax incentives and rebates make installation more affordable, ensuring a quick return on investment.
Learn More -> Benefits Of Rainwater Harvesting
Designing Your Rainwater Collection System
Roof Catchment Area Calculation
To determine how much water you can collect:
Calculate your roof’s square footage.
Multiply by the average annual precipitation in your area (in feet).
Multiply by 7.48 (gallons per cubic foot) to get the total gallons collected per year.
Storage Options: Barrels vs. Cisterns
Rain Barrels: Affordable, ideal for small-scale use.
Cisterns: Higher capacity, suitable for large-scale irrigation or non-potable water storage.
Underground Cisterns: Save space, comply with HOA regulations, and maintain aesthetic appeal.
Filtration and Maintenance
Use a first-flush diverter to remove initial runoff contaminants.
Regularly clean gutters and downspouts to prevent clogging.
Install UV-resistant, sealed storage tanks to prevent algae growth.
Practical Considerations
Freeze Protection
In colder parts of Nevada, insulation and drainage systems prevent freezing damage. Disconnect and drain rain barrels during winter months.
Mosquito Prevention
To prevent mosquito breeding, use fine mesh screens on all openings and add mosquito dunks if necessary.
Roof Material Safety
Avoid collecting rainwater from roofs with lead-based paint, asbestos, or treated wood shingles, as these can introduce pollutants into the water supply.
Unique DIY Insights for Rainwater Collection
Food-Grade Barrels: Repurposing food-grade barrels offers a cost-effective alternative to commercial rain barrels.
Solar-Powered Pumps: Help distribute water efficiently without adding to electricity costs.
Integrated Irrigation: Connect collected water to existing drip irrigation systems for seamless watering.
Repurposed IBC Totes: Offer high-capacity, low-cost storage solutions.
Free Community Workshops: Local hardware stores and the University of Nevada Cooperative Extension provide free educational resources.
Addressing Common Concerns
HOA Restrictions
Check HOA bylaws before installing a system. If visibility is an issue, underground cisterns or decorative barrel enclosures can help.
Contamination Risks
Using first-flush diverters, filtration systems, and regular testing ensures collected water is safe for its intended use.
Upfront Costs vs. Long-Term Savings
While initial setup costs may seem high, tax incentives and government rebates can offset expenses. Long-term savings on water bills make rainwater harvesting a worthwhile investment.
Frequently Asked Questions
Can You Drink Harvested Rainwater Safely?
With advanced filtration and disinfection (such as UV light or reverse osmosis), harvested rainwater can be made safe for potable water use.
How Do You Winterize a System?
Drain and disconnect exposed barrels or insulate storage tanks to prevent freezing damage.
Are There Government Rebates for Installing a System?
Some municipalities offer rebates and incentives for installing rainwater-collection systems. Check local programs for eligibility.
What Materials Should You Avoid for Collecting Water?
Avoid collecting from roofs made of lead, tar, or treated wood to prevent contamination. We recently wrote an article about the best roof materials for rainwater harvesting.
Do Underground Cisterns Require Special Permits?
Depending on the size and use, underground cisterns may require water rights permits or additional regulatory approvals.
Make Rainwater Collection Work for You
Rainwater harvesting is a smart and sustainable way to manage water in Nevada’s dry areas. By investing in a well-designed rainwater collection system, homeowners can reduce water bills, conserve resources, and prepare for droughts.
At Aquabarrel, we offer high-quality, low-cost products designed for DIY enthusiasts and professionals alike. Whether you need rain barrels, gutter systems, or custom downspout adapters, we’re here to help you maximize your rainwater harvesting potential.
Start Your Rainwater Harvesting Journey Today
Don’t let Nevada’s water scarcity hold you back. Visit Aquabarrel for expert advice, reliable products, and everything you need to start saving rainwater today.