How to repair a compass with a bubble

Compass bubbles aren’t caused by temperature or altitude, that’s a myth. The real culprit? Manufacturing shortcuts and, to put it bluntly, cost-cutting. If compasses were properly filled in a vacuum chamber and then tested, bubbles wouldn’t form - unless the compass was damaged after purchase. Since bubbles are now considered "normal," this video reveals the real reasons they appear and demonstrates a reliable method to repair your compass, extending its lifespan for years to come. 0:00 The real reason bubbles form in a compass 3:26 How to test who the air got in 7:15 How to repair your compass 11:38 How to DIY degas compass fluid 14:45 Warming the compass fluid to degas it 18:50 Disassembling and emptying your compass 24:03 Refilling your compass 25:50 Resealing your compass 29:50 Finishing off the repair