Didn't catch it when first reading some time ago. Keep an eye on the water. First she uses it for morning freshening light wash. Than it goes into pot/bucket next to the bed... Kind of looks like night soil bucket. Even if not specifically that, there is no specific plumbing for washing water to go to, so into a bucket it goes.
The bucket is taken to the first floor and the ingredients are used to clean the decor and washing the floor. And off to the street it goes.
The whole procedure from washing her face and cleaning the decor was done with the same water... Once I noticed it I kind of was expecting she would use it to make a cup of coffee as well.