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How often do you change the Glycol in your systems?

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  • How often do you change the Glycol in your systems?

    How often should the glycol be change in long draw glycol systems? I have read every two years, MM says every 8 months to a year. Also, I know a refractometer is the most accurate way to check the glycol mix but they are in the $150 to $200 range -- Has anyone tried using an automotive anti freeze checker made for propylene glycol and compared the results since they are under $10?

  • #2
    Glycol mfgs. recommend every year. Many organizations who offer PM programs offer this service once a year as well. May sound like overkill but why risk a power pack overworking and downtime for a retailer.

    The testers for automotive industry are not designed for propylene glycol. Reading may not be accurate.
    Scott Zuhse, Instructor Micro Matic Dispense Institute

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