What is the ruling on using a hose that contained dead rats and retained their smell after being cleaned?

If mice die in a hose and it becomes impure (najis), it is purified by washing with pure water, or, according to some scholars, with something other than water, provided that the impurity itself—its taste, color, and smell—is removed. If the smell alone is difficult to remove after washing the hose and removing the substance of the impurity, then it is considered pure. If the color or smell remains and their removal is difficult, then it is excused, and the place is considered pure. What is considered for removal is water, and it is not obligatory to use other cleaning agents to remove the color or smell if they can be removed with water.