On Wed, 24 Aug 2005 10:00:49 +0100, Chris ] wrote:

We live in a very hard water area and need to de-scale the electric
kettle often.

Citric Acid crystals from your local Indian food shop, usually a
couple of GBP for a kilo bag. Using one of those small stainless
steel mesh rolls sold as scale preventers in the kettle will slow
down the scaling process quite a lot. You simply wash the steel roll
under the tap every week and it collects a lot of the scale on its
large surface area.

--
Peter Parry.
http://www.wpp.ltd.uk/