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Old 17-06-20, 08:37 PM   #1
Ringmaster
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Default Mucky coolant reservoir clean

Folks,

I have a spare coolant reservoir for my C3 that I was given 15 years ago.
I decided to retrieve it from the loft and clean it up. It is worse than I remembered.

It was full of what looked like rust, much of which came out in lumps. I am now left with a thin layer of this stuff lining the inside of the reservoir. It comes off easily enough where I can reach in but what can I do about the rest of reservoir?

I filled it up with white spirit and left it to soak, but it hasn't had any effect. Can anyone recommend something? Radflush?

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