A. It sounds as if water with a high mineral content is leaving the streaks.

Replies: Assuming you start with water that does not have a very high mineral content.

The water's special properties and mineral content make it popular as a health product.

Some organisms just need a little bit of mineral content.

The mineral content of your water may be low.

Due to its high mineral content the lake supports very little fish life.

Their mineral content is poorly suited to most foreign species of plants.

"And are there many lakes with that kind of high mineral content?"

The very taste of food can reflect its mineral content.

The main dangers are the high sodium and mineral content.