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Click on the TV above to watch a Graf video on rainwater harvesting
New video showing assembly of a Graf Carat tank

Download our fitting instructions for the Carat system

Most Precious Resource | Water facts | How to gain from rain | Saving the World | Drought protection | Reduce your water use

Protect yourself from droughts - Rainwater Harvesting is a start 

Rainfall in the UK varies between 550 and 3000mm a year. However, the high rainfall tends to be in the north and west where few people live. Most people live where rainfall is between 600 and 800 mm a year. London is actually drier than Istanbul and Madrid. In fact it is predicted that it will become wetter in the north and west, and drier in the south and east. The Environment Agency has concluded that the south and east are already past sustainable levels.

The summers of 2007 and 2008 were among the wettest on record. But the summer of 2006 was the driest on record, preceded by a dry winter, resulting in the well-publicised water restrictions. This motivated the Government to introduce new legislation (not in force yet) which will give water boards greater powers during water shortages. Hosepipe bans will extend from just watering gardens and washing cars to include filling swimming pools, ornamental ponds and hot tubs, and cleaning patios, drives and windows.

But with a water tank and an effective irrigation system you could keep your garden going throughout a drought. For example, with a 5000 litre tank and a 100 m long drip system, you could water for an hour a day for 90 days before the tank ran dry, with 1500 litre tank, for @ 30 days, and with a 650 litre tank for @ 10 days.