Section 905.120 — Disinfection
Incorrect. The correct answer is highlighed in green below.
Chlorine contact tanks shall be baffled and provide a contact time of 30 minutes based on _______ times the average flow.
(905.120 b) Chlorine Feeders. Chlorination equipment shall have a means of removal of solids. Appendix A: Illustration S of this Part provides an example of a typical chlorine feeder. All chlorine feeders shall meet the requirements of Appendix A: Illustration S of this Part. Other feeders which meet the requirement of this Section are also acceptable.