Rainwater tanks to bury

The criteria for choosing a rainwater tank to be buried:

• The solidity of the tank. It is wise to choose a solid range of tanks that will lastingly withstand the mechanical stresses of the soil. The manufacturer GRAF guarantees its tanks for 25 years because it has chosen to use the best materials and manufacturing processes.
• The size of the tank. The volume of rainwater storage will depend on the surface connected to the tank and the users' needs. See our article on a tank sizing method or contact us!
• The type of tank. Depending on the constraints of the soil or the configuration of your land you will choose a cylindrical tank more economical or a flat tank which will be easier to install.
• The type of filter. It is strongly advised to install a filter between the gutter(s) and the tank to prevent residues from accumulating at the bottom of the tank. Filter basket to be cleaned or self-cleaning filter to be installed in the dome of the tank or in a suitable manhole depending on the roof surface.
• The type of riser. The telescopic socket includes the lockable cover. It facilitates the installation of the tank. It can be either dedicated to pedestrian passage or cast iron for the passage of vehicles.