Transparent killer?

My friend the Argentine living in Buenos Aires, died of cancer with a difference of one year, the first cat, then my mother. And the cat was still young. What could cause both the disease?.

The cat was fed cat food, well, a little food on the table hosts. But she is not fed on cat food. In addition, together with a woman fed and her family. So I think that the cause of the disease can not eat.

Both were at home for a long time. It may be the area upon which the house is built was the cause of their deaths? .

By asking questions of a friend, I stumbled upon a possible cause of the unknown. Mom, the only one in his family, who drank tea. And water for tea, she took out of the tap. Drinking did not buy. All the rest of the family drank and still drink soda purchase. Well, a cat, as you know, too, drank water from the tap because the soda is contraindicated in cats.

Can the tap water contains carcinogens? .

Water from the tap in Buenos Aires is not suitable for drinking. Externally, it certainly looks like ordinary water with the manners of a clean. But this is only superficially. I buy a water 's.

It is available for home delivery, so people are buying large drinking water tanks, a minimum of 6 liters. To taste the purchase drinking water is significantly different from tap water. Two of my cat, now also drink purchase drinking water.