She finished late morning and hung the clothes out to dry on the line. In the early afternoon the clothes were just about dry. However, our almost daily thunderstorm was about to start without regard for the complete dryness of the clothes. Somehow she was clueless to the approaching storm. So my roommate, James yells in Tshiluba, mayi. That's water instead of rain. So instead of helping James take in the clothes she starts collecting rainwater from the roof. We almost never collect rainwater. So, it's not what he wanted her to do. But anyway, she collected enough water to fill the barrels in the bathroom and toilet.
We finished the drying process on Sunday. On Monday, she returned to iron our clothes. Just as she was finishing the ironing, it started to rain again. She repeated the tasks again but this time she filled the drinking water barrel. That's reserved for our best (cleanest and safest) water we filter before drinking.
There is nothing wrong with harvesting rainwater to drink if it's been collected in a designed and maintain system. And you filter it.
Here's a picture of a glass of filtered water and a glass of unfiltered water. You can see the difference.