Best Rain Barrels for Collecting Water and Saving Mon

Affiliate disclosure: This guide includes affiliate links. If you purchase through these links, we may earn a commission at no extra cost to you.

Jump to Product Sections

• Faucet Water Filters
• Water Softeners
• Money Counter
• Water Dispensers

A functional rainwater collection system relies on durable storage that prevents debris entry and allows for easy water extraction. When choosing your setup, the primary decision factors are your total roof catchment area, the available footprint near your downspouts, and whether you intend to use the water for simple gravity-fed gardening or integrated household tasks. Getting the right capacity ensures you don't overflow during heavy storms while maximizing your monthly utility savings.

Collapsible Rain Barrel – Best for renters and seasonal use in small gardens.

High-Capacity Rigid Barrel – Best for large properties with heavy irrigation needs.

Dual-Tap Storage Tank – Best for simultaneous hose and bucket filling.

Integrated Filter Barrel – Best for keeping out leaves and mosquito larvae.

What to Consider Before Buying

Storage Capacity vs. Footprint Most residential rain barrels range from 50 to 100 gallons. A 50-gallon barrel is sufficient for small flower beds, but larger lawns typically require daisy-chaining multiple units or opting for a 100+ gallon tank. Because a full 50-gallon barrel weighs over 400 pounds, the base must be level and reinforced to prevent tipping or sinking.

Material Durability and UV Resistance Prioritize high-density polyethylene (HDPE) or heavy-duty PVC that is UV-stabilized. Without UV protection, plastic barrels become brittle and crack within two seasons of direct sun exposure. Opaque materials are also essential to block sunlight, which prevents algae from blooming inside the tank.

Inlet and Overflow Design A quality barrel requires a fine mesh screen at the top to catch shingle grit and leaves while blocking mosquito access. The overflow valve is the most critical safety feature; it must be positioned to divert excess water away from your home's foundation once the barrel reaches capacity during heavy downpours.

Access and Pressure Gravity-fed barrels provide low pressure, which works for watering cans but often fails to push water through long soaker hoses. Check the spigot height before buying; if it is positioned too low, you cannot fit a watering can underneath without a dedicated stand. Moving water uphill or through long distances generally requires a supplemental pump.

Detailed Breakdown of Each Option

Collapsible Rain Barrel

This 66-gallon flexible tank is designed for homeowners who want to store water during the growing season but reclaim patio space during the winter. It features a PVC frame and a mesh top that zips closed to keep out debris. It is best for urban gardeners with limited storage who need a seasonal solution that can be folded flat in minutes. You sacrifice the structural rigidity of a hard-shell plastic barrel, which means it can lean if placed on uneven mulch or soft soil. A common mistake is failing to zip the top fully, which allows mosquitoes to enter and breed in the stagnant water.

High-Capacity Well Pump System

When your rain barrels are located at a lower elevation than your garden beds, gravity alone won't move the water. This stainless steel shallow well pump provides the necessary lift and pressure to run standard sprinklers or long-distance hoses from your collection tanks. It is best for property owners with large vegetable gardens who are tired of hand-carrying heavy watering cans. The tradeoff is the requirement for an outdoor electrical outlet and the noise generated during operation. Buyers often mistake this for a submersible pump; this unit must stay dry and be placed alongside the barrel, not inside it.

Hard-Water Treatment Station

Rainwater is naturally soft, but as it sits in plastic barrels or flows through metal gutters, it can pick up sediment that clogs fine misting nozzles. Integrating a softener or filtration step is ideal for those using collected water for delicate greenhouse systems or outdoor cleaning. This is best for hobbyists who have noticed mineral spotting on their plants or equipment. You sacrifice some flow rate for the sake of water purity, and periodic maintenance of the media is required. The biggest mistake is assuming rainwater is "pure" enough for high-end misting systems without any pre-treatment or softening.

Point-of-Use Filtration Kit

If you intend to use your collected rainwater for cleaning outdoor furniture or washing tools, a faucet-mounted filter ensures that fine shingle grit and environmental dust don't scratch your surfaces. This is best for detail-oriented homeowners who want to maximize the utility of their stored water beyond just irrigation. You give up high-volume flow, as the filtration process slows the output significantly. A common mistake is trying to use these filters for drinking water; rain barrel water is for non-potable use only unless a much more complex UV sterilization system is installed.

Energy-Efficient Outdoor Heater

For those who use their rainwater collection for outdoor showers or washing pets, a tankless heater provides immediate warmth without the need for a massive storage tank. This unit is best for off-grid cabins or pool-side setups where a cold rinse is undesirable. You sacrifice simplicity, as this requires a consistent water pressure source (like a pump) and a propane or electric hookup. Many buyers fail to realize that these units require a minimum flow rate to trigger the heating element, so they won't work with a slow-dripping gravity feed.

Savings Tracking System

To justify the investment in a large-scale rainwater harvesting system, using a dedicated counter to track your utility savings is a practical choice. This allows you to log the "money saved" per gallon against your local water rates. It is best for budget-conscious households or those participating in local tax-rebate programs for water conservation. This is a manual tracking step, so it requires the discipline to log your usage regularly. The biggest mistake is forgetting to account for the "tiered" pricing of city water, which often makes rainwater even more valuable during peak summer months.

Which One Should You Choose?

• For Small Backyards: Choose a collapsible rain barrel if you have limited space and need a seasonal solution that can be tucked away in winter.
• For Large Properties: If you need to move water over 50 feet or uphill, pair a rigid barrel with a well pump to maintain functional pressure for hoses.
• For High-Frequency Usage: Opt for a dual-tap system with a filtration kit to ensure the water is clean enough for washing tools or outdoor furniture without clogging.
• For Budget Tracking: Use a savings tracking system to monitor consumption and ensure the setup pays for itself through reduced utility bills.

Always check your local municipal codes before installation, as some areas have specific requirements for overflow drainage and mosquito prevention.

Faucet Water Filters

Purifies collected water for safe use in various household tasks.

Now that your faucet water filters is covered, the next step is water softeners.

Water Softeners

Treats hard rainwater to prevent mineral buildup in storage containers.

With water softeners in place, move to money counter.

Money Counter

Tracks the financial savings generated from reduced utility bills.

After money counter, focus on water dispensers so your setup stays efficient.

Water Dispensers

Provides a convenient way to access and distribute stored rainwater.