Mange in Fox and Coyote. Sarcoptic mange is probably the biggest killer of red foxes and coyotes in New Jersey. It is a highly contagious disease and can be easily spread. It is caused by an infestation of Sarcoptes scabiei canis, a burrowing mite, causing intense itching from an allergic reaction to the mite and resulting in hair loss.
Chemically, the difference between the two is that hard water contains calcium and magnesium ions, while soft water does not. Soft water is easier to lather with than hard water is. Continue Reading.
1 Soft water is less than 1 gpg, whereas hard water is about 7 gpg or higher. You can check your water for free with a quick test.  Parts per million: While less likely, you may also find hardness measured in parts per million (ppm) when shopping for a softener. One gpg is equivalent to 17.1 ppm.