My well pump at the pressure tank is 45 psi. From one of my exterior facets Iwant to run a line to my garden located 300 feet away, to feed a trickleirrigation system consisting of 20 - 120' trickle tube lines which are each runoff of a 1-1/2" header pipe. Each 120' line has its own turn off valve so thatas many lines as need to be, can either be turned off or turned on at the same time. Each of the 120' lines water requirements is about .6 gallons per min. Currently I am trying to feed the entire system with 300 ' of garden hoses allof which are 1/2" . It seems to me like there is an awfully lot of drop inpressure at the outlets individual line outlets, and currently I am only able tofeed 1 or 2 of the 120' lines at a time. I would like to have enough water andpressure to feed more of the lines at a time if possible Questions: 1. will this work this way. 2. Would it be better to feed the 1-1/2' header tube located 300 ' away witha larger diameter piping? 3. Would it be advisable to add a booster pump to the line and / or if so whatkind and how big? Thank you in advance for your valued advise. Denny

"Denny of PA" wrote in message news:7cd0a$55501771$cf3aab60$ Go to a larger pipe. Make sure all the pipeing is larger, including the pipe from the well tank to the hose. Each time you double the diameter of the pipe you get about 4 times the volume, or flow.

how to get maximum pressure and water volume at 300 foot distance.

May 11, 2015 22 Replies

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Denny of PA 11 years ago

today as a trial I just replaced part of my feed line with an additional 50' of

1-1/2" header pipe , at the 300 ' end and I eliminated 50' of one of the 1/2" hoses that i was using to feed the head section. , and i was happy to see that i was now able to get 7 of the 120" trickle line working at a time. yes trhe larger supply pipe appears to be the answer, I was just using the hoses because they were available, but now that i know the cure to my problem i will invest in the poly pipe., and maybe i will be able to get 10 of the lines working at a time like i would like

thanks again for your help

Denny

thank you all for your

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bob haller 11 years ago

its a trickle system, truly whats critical about running 10 lines at a time?

you could run just one line at a time, 24 hours a day.-

what difference would it make?

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Denny of PA 11 years ago

simply because I have 20 - 120 ' lines off of my 1-1/2" header line , and if i run 10 of them at time i water half the garden all at once in about 2 hours. my total supply is 6 gpm and each 120 ' line takes 0.6 gpm x 10 = 6 gpm , that is the max that I can possible water at the same time.

THAT ! is the difference. ;-)

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