Clear doesn’t always mean Clean
Wednesday, Aug 29, 2012 7:55 AM EST
Two weeks ago while doing household visits with Wahab in Kpanayili, we entered the compound of a family that had a full safe storage container of clean looking water. We were delighted. “De viele, de viele” or “good, good”, Wahab and I said to Fati, the woman who showed us where her family keeps their drinking water. She smiled, shy but proud of what she had shown us. Upon further questioning, we found out; however, that while the rainwater this woman had collected in her safe storage container looked very clean, it was most likely contaminated and not suitable for drinking. Fati told us that she had used a clay pot to collect this rainwater from the tin roof above her husband’s bedroom, waiting five minutes for the rain to clear off the roof before collecting. She then told us that she had used her Guinea Worm filter, a mesh cloth that was distributed to her household by the Carter foundation to eradicate Guinea Worm (for more info on Guinea Worm click here or here), to filter water as she transferred it from her clay pot into her safe storage container. This clay pot had no lid and most likely stored dugout water (contaminated surface water) in it during the dry season, meaning that if tested in the lab, this water would come back positive for e-coli. Guinea Worm filters do not actually filter the water, they were used back in the day to make sure that these worms would not make it into the garrawas and buckets used for collecting water for household use. This mesh piece of cloth would remove some sediment at best, leaving all bacteria (the good and the bad) to multiply and stew.
Wahab and I explained all of this to Fati, telling her that while her water looked clear, it was actually not clean for reasons X, Y and Z. “Awoomea”, Fati said or “I hear”. But would she actually get the message and follow through by properly collecting rainwater directly from the tin roof using her safe storage container? Wahab and I could only hope. We would not be there with her when the next rain hit. We would not be able to watch to see if she would use her clay pot again to store rainwater for drinking. The decision to make a behavioral change would have to come from Fati.
This is a common problem in many of the CWS villages that have tin roofs and collect rainwater during the rainy season. While we inform all of our communities on how to properly harvest rainwater, some people do not see a difference in using their clay pot versus using their safe storage container. After all, the clear rainwater looks so much cleaner than turbid dugout water. But how can we get them to intrinsically understand why this clear looking water is actually not clean? At our last staff meeting, this is a question that Peter, Shak, Amin, Wahab and I all pondered. We realized that we were going to need props if we were going to do this right.
Since then, we have been using water samples of contaminated rainwater that have tested positive for Total Coliform (a sign of contamination, shows up bright yellow in a test tube) and water samples taken from the polytank that have tested negative for e-coli and Total Coliform (shows up clear in a test tube). The CWS field staff has been using these two test tubes as a tangible demonstration given during household visits to show the difference between the clean and clear, the good and the bad. In order to get the children of these villages on board, we have also been conducting taste tests of a salt-water solution versus treated polytank water to show how clear water can have invisible germs inside and that you cannot always see what is in your drinking water. Almost every kid that tries the two spits out the salt-water solution in disgust! Clear does not always mean clean… or tasty.