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    Rust in Fresh Water Cooling System

    Hi All - Have an issue with rust colored residue in cooling system. No particles when strained through a paper towel, just rust colored. Settles to the bottom of tank when cold, and mixes into a dirty colored liquid when running and system in use. Recently drained system, pulled heat...
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    Oil or Rust in Coolant Overflow Reservoir?

    Hi All First time posting. 2001 VP 7.4Gi w/FWC. Recently pulled the heat exchanger to rebuild and refilled the system with clean 50/50 coolant. Al seemed well, but after running a couple of times I noticed upon shutdown that the pristine green coolant in the plastic reservoir was no longer so...
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