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TCEQ IRRIGATION LICENSE STUDY GUIDE
BPA requirements for fertilizer injection system - Reduced Pressure Principle Assembly (RPPA) (RPZ) is required when fertilizer injection are being used. Causes backsiphonage? - Caused by a negative or Sub-atmospheric pressure. Example-City departments are using fire hydrant or there's a city main line break, or someone sucking liquid from a glass using a straw. Causes of leaking check valve - Debris-can enter the valve. (Can use Y strainer to provide a solution.) characteristics of flow ...
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BPA requirements for fertilizer injection system - Reduced Pressure Principle Assembly (RPPA) (RPZ) is required when fertilizer injection are being used. Causes backsiphonage? - Caused by a negative or Sub-atmospheric pressure. Example-City departments are using fire hydrant or there's a city main line break, or someone sucking liquid from a glass using a straw. Causes of leaking check valve - Debris-can enter the valve. (Can use Y strainer to provide a solution.) characteristics of flow ...