Click âDisease of the Week,â find rotavirus, and take the quiz to test your knowledge! Rotavirus is a contagious virus that can cause gastroenteritis (inflammation of the stomach and intestines). Symptoms include severe watery diarrhea, often with vomiting, fever, and abdominal pain.
The incidence of rotten egg odor or black water in hot water lines is due to the reaction of. sulfates and micro-organisms in the water that create Hydrogen Sulfide (H2S). This is a water. chemistry condition, rather than a water heater problem.
Quick Facts. 1  The most common cause for musty smelling water is environmental factors like decaying organic matter. 2  Pipe erosion may introduce small amounts of copper, iron, or lead into your water supply. 3  With the exception of hydrogen sulfide or sulfur bacteria, causes of the musty smell are typically harmless.