How clean can we get our water troughs?

Clean water troughs, pipes, tanks, pumps and cows drinking more water as a result. This updated video shows the progress made by the Pruex cleaning process for borehole water. 

The video is made up of four sections

1. The starting situation showing debris within the water trough, and a thick slime on the trough walls.
2. The effect 3 days into the cleaning process, showing a greatly improved water quality.
3. The change seen in the way the cows drink water.
4. The situation after 7 days of the Pruex cleaning process, showing crystal clear water and a very clean water trough