@veritas_vortex7: Why Do Japanese Workers Roll Marbles on the Floor? . . . This unique Japanese tiling technique uses a marble slope test to ensure bathroom floors have the perfect pitch for drainage. It is a brilliant construction hack used to prevent water pooling. If someone in japan fails this test they have to do all the hardwork again. This is an prime example of japanese quality standards. Subscribe for more facts about home improvement. . . . #japan #japanesework #bathroom #fyp #foryou

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Thursday 17 September 2026 17:49:52 GMT