detergent

Cleaning impurities from clothing

Q: We have a washerman, who after cleaning the clothes with detergent uses hodees (small water ponds to store water) to wash them completely. He uses 3 or 4 such hodees such that after putting clothes in one, he puts them in the other to remove the remains of the detergent... Will it suffice to make the najis clothes paak if one finds no signs of najasat afterwards...

Washing a musalla that was touched by a shoe

Q: My mother uses a sandle which she takes to the toilet also. A few times she accidentally stepped on my musallah. I touched the part and it was not wet. With my hand only, I clean the dust without using any water as I am not sure where she exactly stepped on. She also stepped on the musallah with her shoe which she wears when she goes outside. Do I have to wash the musallah? I am currently reading salaah on the same musallah. I have doubts about another musallahs because my nephew urinated on them and the house worker washed them. I dont know if she washed it thrice or not. Can I read salaah on them as she used a detergent?

Cleaning impurity

Q:

1. Is detergent considered to remove impurities, or only water?

2. How can you go about cleaning an impure toilet seat? Because if you pour water over it, it will undoubtedly go on the floor making the floor impure too.

3. To clean impurity on a hard floor, do you simply pour water over it and wipe clean or must you pour and wipe with a cloth 3 times, squeezing each time?