In the situation that water excellent parameters are wanted to be increased than the objective, e.g., residual chlorine, the excursion is approximated as follows: e x c u r s i o n i = O b j e c t i v e i File a i l e https://arthurjx7z8.bloggazzo.com/30439227/the-best-side-of-how-to-clean-sewage-in-qassim