Opening the discharge valve one full turn on a chlorine cylinder will do what?

Opening the discharge valve one full turn on a chlorine cylinder will permit maximum discharge of chlorine gas. This action allows for sufficient flow of the gas to meet the needs of the application without creating excessive pressure loss or forcing the gas through an overly narrowed opening.

In the case of chlorine cylinders, the discharge rate is heavily dependent on the valve's opening. A full turn is typically designed to optimize the gas flow for effective operation in water treatment processes. This maximizes the efficiency of chlorine usage, ensuring that the treatment process can maintain its desired disinfection levels.

Other options like reducing pressure, minimizing leakage, or increasing concentration do not align with the function of fully opening the discharge valve. While it may contribute to maintaining more stable pressure and reduce leakage risks, these outcomes are secondary to the primary effect of maximizing the discharge flow of chlorine.