CARAT 4800L underground rainwater storage tank and accessories

Simplify your life with the Carat rainwater storage tank, which is more economical and easy to install than a concrete tank!

This free water resource will save you a lot of money, in addition to helping the environment! If you equip your tank with a filtration system, you can even wash your laundry, use it for your toilets, or wash your car in addition to watering your garden.

Discover the special rainwater Carat tank from the GRAF brand:

Volumes adapted to your needs:

With the Carat tank model, gain autonomy over your water consumption: this tank model offers the possibility of holding a capacity of 2.7 m³ to 6.5 m³.

Lightness of the tank:

Handle it more easily than a concrete tank! Extremely light, with its 120 to 220 kg, it offers you a gain of 2000 to 4000 kg compared to a concrete tank.

Easy to check and clean:

Checking and cleaning your tank has never been so easy! The Carat tank has a 600 mm manhole and a smooth internal wall to facilitate its cleaning and control.

Guaranteed quality tank:

Its 30-year warranty gives you peace of mind over time. To this end, we recommend that you carefully follow the installation instructions.

For a water resource available all year round:

Practical, economical, adaptable to needs and ecological, the Carat tank is the comfort volume tank par excellence. It allows you to benefit from good quantities of water all year round for your domestic uses, such as watering your garden, washing the car. It also allows you to avoid using drinking water for your sanitary facilities and wash your clothes with filtered and untreated water.

Thanks to the storage of rainwater, you can escape prefectural orders prohibiting watering. Thus, you can tend towards autonomy by storing it, without it infiltrating into the ground.

Good to know and to plan:

• Larger volumes of 8.5 m3 or 10 m3 available with the Carat XL 16m3 model and even more with the Carat XXL models or by combining 2 tanks of the same volume.
• Be sure to unload the tank when it arrives at your home.
• For maximum comfort, we offer all the Garden Kits, Housing Kits and Accessories dedicated to this tank as options. They can be ordered separately from the tank (available in the drop-down menu) or available in complete kits in the dedicated categories on the website.
• If you would like the tanks to be pre-drilled in a place other than the places provided for this purpose (see the "Documentation" section), it is important to let us know.

GRAF tanks are the result of more than 45 years of know-how.

For an optimal user experience and to guarantee you the best of the rainwater tank, its design has been specially planned to facilitate its access to control, cleaning and to provide a demanding quality of its plastic dedicated to consumption.

Designed with the greatest care, the Carat tank is resistant, light, ecological, economical and almost invisible because it is buried. It will bring you an optimal comfort of use and installation.

For more information, go directly to the documentation tab.