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LPTJoe · Dec 10th, 2018, 07:25

I thoroughly flushed mine and filled with a 50/50 mix of Comma SuperColdmaster (£12 for 5l) and dionised water.

The mix is a lovely blue colour, it looks good in the expansion tank and 6 months on I have no issues.

Dec 10th, 2018, 07:25	#24
LPTJoe Senior Member Last Online: Mar 25th, 2022 06:54 Join Date: May 2018 Location: Southampton	I thoroughly flushed mine and filled with a 50/50 mix of Comma SuperColdmaster (£12 for 5l) and dionised water. The mix is a lovely blue colour, it looks good in the expansion tank and 6 months on I have no issues.