If your bath water has a greenish-yellow tint—especially paired with a metallic taste or smell—it might indicate elevated copper levels. This often happens when acidic water eats away at copper pipes. While rare, this warrants a quick water test.
For the vast majority of yellow baths, though, the solution is patience and a five-minute flush. The water is safe, clean, and normal.
Fun Fact: The World’s Yellowest Water
Lake Nyos in Cameroon sometimes turns a striking yellow from dissolved iron and volcanic gases. It’s dangerous for drinking but a stunning spectacle. Your bathtub? Perfectly safe spectacle.
