Black particles in tub and tanks of all toilets.
I just moved into a house on a couple of acres a couple of months ago. Water is from a well. The water goes through a water softener then into the house. The water when we moved in was cloudy with a little bit of white sediment but because the water softener wasn't being maintained. Since, water has been clear until today we ran the bath water. I then noticed the black particles. When touched and smeard between fingers it turns reddish brown. I then looked in the tanks of all toilets and it was there as well.
I will flush the hot water heater this evening or first thing in the morning but could the particles be from something else since they are in the toilet tanks too?