RainFlo 430-AG Rainwater Collection System

Name: RainFlo 430-AG Rainwater Collection System
Brand: RainFlo
SKU: RF-430AG-050
Price: 2693.9 USD
Availability: InStock
Rating: 5 (7 reviews)

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MSRP:

$3,111.00

$3,111.00 - $3,111.00

$3,111.00

Now:

$2,693.90

$2,693.90 - $2,693.90

$2,693.90

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SKU RF-430AG-050

Graf Herkules™ 430 Gallon Complete Rainwater System

The Most Versatile Starter Tank on the Market, Above Ground or Underground

Looking for a complete, hassle-free solution to store rainwater underground? The Graf Herkules™ 430 Gallon Complete System comes with everything you need: the tank, structural support column, 8" riser, and access dome. It’s purpose-built for homeowners who want to install a clean, efficient system with minimal digging and zero guesswork.

The tank is lightweight (only 130 lbs), fits through tight spaces like 32" doorways, and can be buried up to 40 inches deep, even in high groundwater zones. It’s ideal for basements, under decks, or in small backyards where space is limited.

This is not just a tank, it’s a fully integrated system that’s expandable, easy to install, and designed to grow with you. Whether you're starting with one or planning to connect more tanks in the future, this system sets you up with everything you need to collect, store, and use rainwater smarter.

RainFlo 430-AG Rainwater Collection System

Return & Refund Policy

If you are not satisfied with your purchase, please contact us and request a Return Material Authorization prior to returning any merchandise. Requests for returns for standard non-special-order items may be made within 30 days of the item's ship date.

RainFlo 430-AG Rainwater Collection System

Dowloands

RainFlo-HerkTank-system.pdf

Can I use this water for drinking?

Not with the standard setup. However, if you need potable water, we can offer an additional filtration and disinfection system to make the rainwater safe for drinking. Let us know your needs, and we’ll guide you through the right upgrade.

Does the system include everything I need to get started?

Yes, it comes complete with the tank, pump, filter, controller, fittings, and all core components needed for a turnkey setup.

Can I use this system for indoor plumbing, like toilets or laundry?

Yes, the system is fully compatible with indoor non-potable uses like toilet flushing and laundry when installed with the proper connections.

How do I know what tank size I need for my home or garden?

A simple way to estimate the right tank size is by calculating how much rainwater your roof can collect. Multiply your roof’s surface area (in square feet) by your average annual rainfall (in inches), then multiply by 0.62, this gives you the total gallons you could collect in a year. For example, a 1,000 sq ft roof with 30 inches of rainfall can collect around 18,600 gallons annually. From there, we can help you choose the right tank size based on your water use and how much storage you want on hand, whether you're using it for irrigation, home use like toilets or laundry, or even potable water with the proper filtration upgrades.

Can I connect this to my irrigation system?

Yes, absolutely. Our complete rainwater harvesting systems are perfect for irrigation. You can easily connect the system to drip lines, sprinkler systems, or garden hoses to water lawns, landscaping, or vegetable gardens using filtered rainwater. It's an efficient and eco-friendly way to reduce your utility bills.

Can I expand the system later if I need more water capacity?

Absolutely. The system is modular, so you can add additional tanks, pumps, or components in the future.

What if it doesn’t rain enough in my area?

The system is efficient even in low rainfall zones, especially with a large roof area. You can also connect a backup water supply if needed.

I’ve never used a rainwater system before. Will I know how to manage it?

Yes. Once installed, the system is largely automatic. It includes a self-cleaning filter, automatic controller, and minimal maintenance requirements.

Is this system difficult to install?

We recommend professional installation through contractors or companies that specialize in rainwater system setups. However, the system comes with all core components and documentation to make the process smooth for any confident, skilled homeowner.

Customers are saying

5.00 ★ (7)

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