The ultimate multi-point inspection and performance baseline test for restored Rainbow vacuums. Confirms true negative pressure suction, electrical insulation safety, and mechanical balance before returning to client.

Inspection Highlights

• 1500V Hi-Pot dielectric breakdown and grounding continuity test
• Dynamic water vortex centrifugal retention rate test (>99.9%)
• Vacuum suction water-lift manometer pull test
• Power cord fatigue flexing and strain relief durability inspection
• Numbered calibration report and 180-day certified warranty seal affixed