Ringworm is a fungal skin infection; there are several different types of fungus that can cause ringworm. 1  Symptoms of ringworm, other than dog hair loss, include: 2  Scaliness. 3  Crusty areas. 4  Pustules. 5  Vesicles. 6  Itchiness. 7  Draining.
Neither the water heater nor the softener has had anything done to it in 11 years other than me adding salt to the water softener salt storage container. We have hard water. Recently, in the past several months, our water has got sort of a musty smell (for lack of a better description) intermittently.
The smell is only from the hot water faucet the problem is likely to be in the water heater. If the smell is in both the hot and cold faucets, but only from the water treated by a water softener and not in the untreated water the problem is likely to be sulfur bacteria in the water softener.