5. Well Water

45. The water of a well which springs forth from the earth, although its quantity may be less than a Kurr, does not become Najis owing to something Najis falling in it, unless its colour, smell, or taste changes. However, it is recommended that, in the event of certain Najasat falling in it, a quantity of water should be drawn from the well. Details about this quantity are given in the relevant books.