We live in the rural area of our community and therefore, have a well to supply us water. Last month we had to replace the jet pump and pressure tank. Everything was fine for a few days, then we started getting a strong smell from the water. Got that cleared up. Now, when water is turned on in the upstairs bathroom, it is almost black, does not have an odour, gets darker the longer it is is running. I took the little filter off the tap to see if there was something inside, but it is clean. All the other taps in the home run clear water...bathrm. in basement, kitchen sink, just the bathroom. There is a slight smell, but cannot detect it for long. I have a water softening unit in the basement, had someone come out to look at it, and it is working fine. We did a backwash on it for 2 hours and the smell is gone and water is clear, except for the bathroom. Does anyone have any ideas what is going on?