There are numerous germicides available to put in your coolant. Also many coolants have germicides in them. Low use/stagnant coolant, especially with an oil film will become rancid at some point. A skimmer is your best buddy. It is unfortunate but most germicide-based coolants will take the paint off of a machine. Epoxy based paints resist this the best. Alcohol based paint (Japan) will come off within a few days. Keeping the machine as clean as possible is good insurance.
__________________ Experience is what you get when you don't get what you want. |