Is it safe to use a shower and washing machine in a Da Nang apartment with questionable electrical grounding?

If the apartment’s grounding is uncertain, avoid showering while the washing machine is operating; the discussion flags a possible shock risk through bathroom plumbing.

A rain-soaked balcony with standing water is also treated as a possible area for tingling if electrical protection is faulty. Do not rely on assumptions about low risk; avoid wet areas until the wiring is checked.

Videos and guides about bathroom grounding and washing-machine grounding can help explain the issue, but they do not replace a professional inspection of the wiring.