I appreciate the assertive and authoritative replies and advice above, and am certainly not trying to provoke and irritate, but given the large amount of dosh I have spent on this in the past (and it's rising again now, G** help me...) I'm still trying to reassure myself I've reached a clear conclusion:
this ebay seller of de-ionised water: is their product / process description relevant to what is suitable for cleaning / rinsing:
http://www.ebay.co.uk/itm/DE-IONISED...25.m3641.l6368
I ask particularly as I've had a reply from the makers of the 'vinyl revival' cleaning set available on Amazon. I'd ordered a set of this before joining in with this thread and thinking more in terms of Paul's product: but what caught my eye is their admonition to avoid using distilled water.
In asking why, I've been told the following:
"Distilled water will contain cations and anions ie. positive and negative charge, which in turn can result in static - the record player's enemy."
Does this imply that water needs de-ionising as well (you can tell I'm not a chemistry major, right ) ... ?