"Andrew Gabriel" wrote in message
.. .
In article ],
Chris ] writes:
We live in a very hard water area and need to de-scale the electric
kettle often. We have tried various de-scaling products, including
vinegar.
The best was "Scale Away" crystals from Tesco.

But that's quite expensive - and I bet it's something ordinary like
sodium citrate. Does anyone know what the chemical actually is - and
where it might be obtained cheaply in bulk?

For metal kettles, the descaller is sulphamic acid, which you can buy
in large tubs of crystals (Furnox DS-3) from a plumbers merchant (or


Tried furnox and it works, but smells a bit which lingers for a week on
plastic kettles (from experience). Plus it will strip any nickel plating
off the kettle element if it's left in there for hours, leaving a nice brass
finish.

rusty