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Advanced Refrigeration PodcastAuthor: Brett Wetzel & Kevin Compass
This podcast is for the education of supermarket and commercial refrigeration systems. We will be going over operation troubleshooting and diagnostic on multiple types of systems including mechanical and energy management Language: en Contact email: Get it Feed URL: Get it iTunes ID: Get it |
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Refrigeration Technologies with John Pastorello Oil Analysis, Nylog For CO2 ?? --- Episode 518 Video
Episode 18
Sunday, 3 May, 2026
Big Blue Bubbles, Nylog Truths & CO₂ Oil Mysteries (w/ John Pastorello) | Advanced Refrigeration PodcastBrett Wetzel and Kevin Kompus open with shop-talk about chaotic workloads, out-of-town jobs colliding with local work, a thrown-out back from flipping coffin cases, and joking about “not looking” at oil sample results. They welcome guest John Pastorello, founder of Refrigeration Technologies, who shares his path from bench chemist to HVAC/refrigeration tech to contractor, then into product formulation after back issues. John explains how he developed Big Blue as a refrigerant-compatible bubble leak detector and why spray application helps identify leaks, then discusses Nylog’s origins, red (mineral oil) vs blue (POE) versions, and cautions against using Nylog alone on high-pressure CO₂ systems. They review a CO₂ oil analysis, sampling locations, possible contaminants, and why some bubble sprays can trigger electronic leak detectors due to chlorinated preservatives, and John also critiques harsh coil-cleaner chemistry and private-equity buyouts.
