Explain with sketch working of syphon pipe

Explain with sketch working of syphon pipe
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i. Syphon is long bent pipe which is used to transfer the liquid from reservoir at a higher level to another reservoir at a lower level , When two reservoirs are separated by a hill or high level ground as shown in figure. ii. The syphonic action is the process of rising of water from inlet upto summit and beyond summit water flows under action of gravity. iii. The highest point of syphon is called summit. iv. As shown in Fig. above the portion of syphon between C and D is above hydraulic grade line having pressure below atmospheric pressure i.e. negative pressure. v. It is essential that pressure at summit is less than atmospheric pressure or negative pressure to rise the liquid or water in the inlet limb.

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