In-ground tank GF-372004-DUK2

rainwater

Graf Carat tank 6500 litre underground rainwater harvesting system kit. The trusted Carat from Graf, supplied complete as a kit for use as a domestic household or garden rain water harvesting system. This complete system features an auto-mains back-up. The graphic image above shows the main components of the Carat DUK2 System and a typical layout for a simple domestic and garden application. The item marked with a * is the Rain Backup in a Box®. This 12v automated valve will trickle mains water into the tank when it is very low due to sustained drought to allow the connected domestic appliances (e.g. toilet) to work. External HDPE Rainwater Pipe included. It is important to identify a source of a water supply. Untreated rainwater is not for human consumption and so water companies are recommending (and in some cases requiring) that Black and Green HDPE pipe is used for piping rainwater from the tank to the point of use - eg. garden tap. The point of use should be clearly labelled to show that rain water is the source. We include 25mm black and green hdpe pipe and labels with this kit with the option to buy further rolls of pipe.