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Pipe thickness gauge vs my old calipers, night and day on site
Used to eyeball wall thickness with my calipers on boiler tubes near Baton Rouge, always second guessing myself. Last month my buddy let me borrow his ultrasonic gauge and I measured a 1/2 inch line that was actually down to 0.35, corrosion hiding behind the paint. Now I check every suspect spot on tubes before we even talk about welding a patch. Anyone else run into hidden thinning that looked fine from the outside?
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