Mine is still clearing up a week later. I wasn't home most of that week so it wasn't being used, but when I first turn it on after sitting, it comes out almost black. Bad smell. it does clear up, but takes a while. This is a 126 foot well. My well at my shop 2 blocks away (145' deep) is clear. Neighbor says his well is fine. I believe his is a few feet shallower than mine.