De-ionised water: update

Following on from my request for information on de-ionised water, firstly let me thank all those who replied.
I'm delighted to say that the Fanuc Wire Eroder is now re-assembled and re-commissioned in my barn and is cutting a test pattern as I type this.
The ion exchange column within the machine was able to process the 200 litres of 'inital fill' water and is keeping the conductivity within limits - lucky bonus was a tub of anion mixed cation resin that I was unaware was part of the sale!
AWEM

On Wed, 24 Aug 2011 16:28:31 +0100, "Andrew Mawson"
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Can it be regenerated or is it disposable?
Regards Mark Rand RTFM

wrote:
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200
within
was
It's a mixture of two resins, both of which can be revived if separate, but as they are mixed, it's a case of ditching and refilling!
AWEM

On Wed, 24 Aug 2011 21:23:35 +0100, "Andrew Mawson"
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Drat! You'd think it would be so simple to make them different densities or use separate beds. Maybe the replacement cost is comparable with regeneration if you're not running a power station...
Hmm. Pressurised water cooled induction furnace with a steam drum and condenser :-)
Regards Mark Rand RTFM

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But presumably the induction furnace would use more electricity than was produced, otherwise it would violate the laws of thermodynamics.
David

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Can you not separate them based on density?
As far as I recall this is usually done by pumping water upwards through the resin in a suitable column, which makes the less dense particles float to the top at which point you separate and regenerate.
Alan