Its my first tank in the house, with this water. Sadly, this is just my water. If I leave it in a container long enough it collects a decent amount of yellowish/orange sediment at the bottom. Heres an example. This water in this jar is maybe a month or so old. It was filled in case the power went out to water the dog and it was forgotten. You can see the yellow at the bottom, its a layer of dirt? lol