02:44
Conventional Jar Test
05:05
DAF Jar Test
02:54
WaterGrades Math-Detention Time
01:49
WaterGrades Math-Pressure
01:00
Valves and Meters Course Intro
00:51
Source Water Course Intro
01:07
Laborotory Procedures Course Intro
01:02
Corrosion Control Course Intro
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