11 | Water Sifu #19: Meters and Valves 2011-04-28 |
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12 | Water Sifu #18: Distribution Review – Audio Flash Cards 2011-03-21 |
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13 | Water Sifu #17: Trenching, Shoring and Water Main Construction 2011-02-16 |
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14 | Water Sifu #16: Drinking Water Supply 2011-01-16 |
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15 | Water Sifu #15: Water Treatment Exam Prep – Audio Flash Cards 2010-12-16 |
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16 | Water Sifu #14: Passing your Water Treatment or Water Distribution Exam – The First Time 2010-12-03 |
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17 | Water Sifu #13: Water Math 2010-11-25 |
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18 | Water Sifu #12: Government Regulations 2010-11-02 |
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19 | Water Sifu #11 – Hard and Soft Water, Iron and Manganese Problems, Nitrification 2010-10-23 |
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20 | Water Sifu #10: Biological Contaminants and Disinfection 2010-10-16 |
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