If impurity is removed from water by chemical substances, does it become pure?

The questioner : If this impure water has chemical substances added to it, and they remove the impurity, does it become pure?

The Shaykh : According to the school of thought, no, because it is not purified except by water. But according to the opinion we mentioned, it becomes pure; as long as its taste, color, and smell have changed, it is pure. I think this is used in Western countries.

The questioner : We have it here, Shaykh.

The Shaykh : Is it available? Yes. Yes, indeed. Do not swear about it.

The questioner : No, no, no, it is not poured on crops. This is poured on the gardens in the streets.

The Shaykh : Yes, it is poured on the gardens. And if it touches your garment, it does not make it impure according to the opinion we chose, and according to the second opinion...

The questioner : We find...

The Shaykh : Yes. Hm? No, if it has a smell, it is impure and has not become pure.

The questioner : What happened to the chemicals?

The Shaykh : No, the chemicals are gone; they do not harm. And I think the smell of the chemicals went away with the potatoes.