Virtual Lab: Treating Water

I enjoyed doing the virtual lab. I treat water as an occupation so I understood how and what to add to treat the water. If you have a low (acidic) pH then you should add sodium hydroxide. If you have total coliforms, you should chlorinate before and after treatment. Often, we test houses for total coliforms and e. coli. If the bacteria is positive, then we chlorinate the well. After we make sure all the chlorine is throughout the house, we let it sit for 24 hours to disinfect the pipes and the well. Then we flush the system so there is no more chlorine and resample the bacteria. If you have high nitrates or pesticides, then you should activate carbon and chlorinate at the end. If you have high metals, then you should add chlorine at