Reply To: Corrosion in cooling system

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That’s interesting that you don’t have foaming, George. I bought some No-Rosion a few years ago but switched to the PenCool 3000 (also available as NapaCool and WixCool) when I had a foaming problem. I took our Pierce on a 4 day tour this past week and decided to give No-Rosion another chance as I had one bottle left. Sure enough, it foamed again, as it had before. I controlled the problem for the last couple of days of the tour by adding a shot of Rug Doctor Anti-Foam each morning, but have now drained the system and put in distilled water with WixCool. I gave it a quick test yesterday and all seemed fine.