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 odor of hydrogen sulfide gas can be detected in water at a very low level. Smell the water coming out of the hot and cold water faucets. Determine which faucets have the odor. The rotten egg smell will often be more noticeable from the hot water because more of the gas is vaporized.
If you notice this smell in your water, it probably contains hydrogen sulfide (H2S) gas. Sources of this gas include:Decay of organic matter or chemical reactions with sulfur-containing minerals in soil and rock. If the smell is only from the hot water tap, the source is most likely your water heater. 2  If the smell is from both hot and cold taps, but only from water treated by a water softener, you may have sulfur-reducing bacteria in your water softener.