The Barnaclean process, this is a cooling system that was not cooling correctly, as you can see the salt water residue is bad.

The Engineers at Onshore Marine have stripped it down to clean and remove the build up.

With a ratio 1:4 we let the parts soak for 2-8 hours depending on the residue.

After you have left it soaking, all parts should be clean and all saltwater build up gone.