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Marci · 02-22-2005, 11:03 AM

Ah righty.... y'see that was what I was looking for... do they actually work as a biocide or not or was that just another of those "myths" we like to discuss and deface... I was unaware that a low pH did that.... however, looking around the net it's not exactly easy to find anyone who's done any testing of various solutions left in a position to be "infected"... ie: comparing them on antifungal properties in particular. Can find plenty comparing which one smells like piss the most, plenty comparing which ones inhibit corrosion the most (altho nearly all those I looked at were most definitely NOT mixed to the manufacturer's instructions and had their own inaccuracies in testing procedures anyways) but no clear conclusion on the biotic properties.

Would it be worth in your opinion obtaining some AC Blue and checking it out? Or would you say that current additives are satisfactory for the task at hand? Think that's the question.

Are the anti-fungal properties that current popular commercial / automotive additives provide satisfactory?

If the answer to the above is no, then should suitable "add-ons" be looked into and would they be beneficial....? Obviously if the answer to the above is yes then the answer to this is most obviously no.

Never had the equipment to test for presence of fungal growth or distinguish it from the white residue that all the additives have a tendency to generate.... however, now that we have a relatively pro chemist on our forums over at O-CuK I think I shall be having words on the matter and see what tests he would do to ascertain what the crack is...

And then comes the ultimate question - if the use of separate biocides should be investigated, how would one come up with the necessary controlled environment and variables to allow the testing to be relevant and useful?

Either way have 1litre of AC Blue on it's way. We've spoken to the manufacturer who states that it will reduce the thermal properties of water VERY marginally... it's mix ratio is 1ml of ACBlue to every 1 Litre of coolant (1:1000), and it's slightly blue in color and will slightly dye the water... will let u know when it arrives...

02-22-2005, 11:03 AM	#3
Marci Cooling Savant Join Date: May 2003 Location: Wakefield, West Yorkshire, UK Posts: 486	Ah righty.... y'see that was what I was looking for... do they actually work as a biocide or not or was that just another of those "myths" we like to discuss and deface... I was unaware that a low pH did that.... however, looking around the net it's not exactly easy to find anyone who's done any testing of various solutions left in a position to be "infected"... ie: comparing them on antifungal properties in particular. Can find plenty comparing which one smells like piss the most, plenty comparing which ones inhibit corrosion the most (altho nearly all those I looked at were most definitely NOT mixed to the manufacturer's instructions and had their own inaccuracies in testing procedures anyways) but no clear conclusion on the biotic properties. Would it be worth in your opinion obtaining some AC Blue and checking it out? Or would you say that current additives are satisfactory for the task at hand? Think that's the question. Are the anti-fungal properties that current popular commercial / automotive additives provide satisfactory? If the answer to the above is no, then should suitable "add-ons" be looked into and would they be beneficial....? Obviously if the answer to the above is yes then the answer to this is most obviously no. Never had the equipment to test for presence of fungal growth or distinguish it from the white residue that all the additives have a tendency to generate.... however, now that we have a relatively pro chemist on our forums over at O-CuK I think I shall be having words on the matter and see what tests he would do to ascertain what the crack is... And then comes the ultimate question - if the use of separate biocides should be investigated, how would one come up with the necessary controlled environment and variables to allow the testing to be relevant and useful? Either way have 1litre of AC Blue on it's way. We've spoken to the manufacturer who states that it will reduce the thermal properties of water VERY marginally... it's mix ratio is 1ml of ACBlue to every 1 Litre of coolant (1:1000), and it's slightly blue in color and will slightly dye the water... will let u know when it arrives... Last edited by Marci; 02-22-2005 at 11:29 AM.