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Cattle Boards
Grasses, Pastures & Hay
Any irrigation “experts” in the house?
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<blockquote data-quote="Lisagrantb" data-source="post: 1753347" data-attributes="member: 39668"><p>Correct, not a problem priming. I just thought there should not be a vacuum at the high point with the pump running but as pointed out there is no restriction in the line (valve on the discharge end) that there would be a vacuum unless something created a large enough back pressure to put a little pressure at the high point. </p><p></p><p>I was thinking that if I could get the entire pipe 100% full then the siphon effect would lower the head pressure and increase pump efficiency. If the pipe isn't full at the top you loose the siphon and it's the same as discharging at the top of the system or in this case the levee. Am I wrong?</p></blockquote><p></p>
[QUOTE="Lisagrantb, post: 1753347, member: 39668"] Correct, not a problem priming. I just thought there should not be a vacuum at the high point with the pump running but as pointed out there is no restriction in the line (valve on the discharge end) that there would be a vacuum unless something created a large enough back pressure to put a little pressure at the high point. I was thinking that if I could get the entire pipe 100% full then the siphon effect would lower the head pressure and increase pump efficiency. If the pipe isn’t full at the top you loose the siphon and it’s the same as discharging at the top of the system or in this case the levee. Am I wrong? [/QUOTE]
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Any irrigation “experts” in the house?
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