Name: RainFlo 700-IG Complete In-Ground Rainwater Collection System – 700 Gallons
Brand: RainFlo
SKU: RF-700IG-075-115-340037
Price: 5169.95 USD
Availability: InStock

RainFlo 700-IG Complete In-Ground Rainwater Collection System – 700 Gallons

by RainFlo

SKU RF-700IG-075-115-340037

Save $703.05

$5,873.00

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$5,873.00

$5,169.95

$5,169.95 - $5,169.95

$5,169.95

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Product Description

Sick of wasting time trying to figure out what parts you need to build a rainwater system? The RainFlo 700-IG is your shortcut to doing it right the first time. It’s a fully integrated, in-ground rainwater harvesting system designed to save you time, eliminate frustration, and give you reliable performance from day one.

Instead of hunting down tanks, pumps, filters, and fittings from different suppliers, and hoping they all work together, this all-in-one system comes ready to install. Every component has been carefully selected and perfectly matched for optimal performance, so there’s no guesswork, no compatibility issues, and no plumbing headaches.

Collecting rainwater isn’t just about saving money, it’s about reducing your reliance on municipal water, protecting your property from runoff, and having a dependable water source during droughts, restrictions, or emergencies.
It’s also a smart, eco-friendly choice that helps conserve freshwater, reduce stormwater pollution, and support long-term environmental sustainability.

Whether you’re using the system for irrigation, flushing toilets, or as a backup supply, the RainFlo 700-IG gives you everything you need in one box, with none of the hassle.

The Tank Guaranteed Not to Collapse When Empty*
* When installed in compliance with manufacturer's installation instructions

15 Year manufacturer's warranty

System Includes:

	The Graf 700 Gallon Carat Tank - Graf Carat-S 700 Gallon Underground Cistern with Pedestrian Manway, 14" Telescopic Riser and Childproof PE Lid. Unlike most cisterns, the Carat can be left empty without the risk of collapsing.
	The Graf Optimax Pro Internal Filter Package - Internal self-cleaning cascade filter package. Includes filter, downpipe attachments, calming inlet, overflow siphon and Spannfix sleeve. Suitable for roof areas up to 3,750 sq. ft.
	The RainFlo .75 Horsepower Submersible Pump - Heavy-duty, high performance 115V/60Hz .75 horsepower 2-stage submersible pump with 1.25" threaded inlet to easily accept a floating extractor. Produces up to 29 GPM and up to 46 PSI.
	The RainFlo 115V Automatic Pump Controller - Provides automatic multifunction control for your water pump.
	The RainFlo 1.25" Floating Extractor - The floating extractor consists of an air-filled ball which suspends the floating inlet filter 4" below the water's surface where the cleanest and most oxygenated water resides.
	The RainFlo Pump Connection Kit with MPT to hose barb adapter and marine-grade stainless steel hose clamp to connect the pump to the floating extractor.
	The 1.25" Heavy Duty Bulkhead Fitting is installed in the side of the tank dome for a watertight connection between the inside and outside of the tank for the pump output plumbing.

Return Policy

If you are not satisfied with your purchase, please send an email to support@thefountaindirect.com or call us to request a Return Material Authorization (subject to manufacturer approval) prior to returning any merchandise. Requests for returns on standard, non-special-order items may be made within 30 days of the item's ship date.

In order to provide our customers the highest quality products at the lowest possible prices, we only accept returned merchandise in "factory new” condition. We must be able to resell the product as new in the condition it is returned to us.

Download Brochure

Download Installation and Maintenance Manual

Download System Drawing

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.

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