WSO Water Treatment Grades 3 & 4: Disinfection/Operator Chemistry, Ch. 1
4:43
WSO Water Treatment Grades 3 & 4: TLS: Lime Softening and Operator Chemistry Made Easy II, Ch. 1
1:03:59
Chlorine Disinfection and CT Calculations for Small Water Systems
29:49
AWWA Chlorine Webinar
7:26
WSO Water Treatment Grade 1: Water Disinfection, Ch. 12
2:25:31
Wastewater Training, 3 of 3
12:28
How Sewers Work (feat. Fake Poop)
11:38
How NYC’s Sewage System Treats 1.3 Billion Gallons Of Wastewater - NYC Revealed
42:53