Permaculture instructor Andrew Millison lays out some of the basics you need to know to design a gravity irrigation system.
Helpful links:
Understanding Gravity Flow Pipelines (BC Canada) focused on livestock, imperial units:
https://www2.gov.bc.ca/assets/gov/farming-natural-resources-and-industry/agriculture-and-seafood/agricultural-land-and-environment/water/livestock-watering/590304-5_understanding_gravity.pdf
Designing, Sizing and Construction of Gravity Flow Systems in Rural Areas - in metric.( Extensive document with exercises and answers):
https://www.pseau.org/outils/ouvrages/acf_gravity_fed_system_2_sizing_en.pdf
Formula and Calculator for Friction Loss Using Hazen Williams
Online Pipe Flow Calculator:
http://irrigation.wsu.edu/Content/Calculators/General/Pipeline-Pressure-Loss.php
Gravity Flow Pipe Exercise YouTube showing how to design a gravity flow system 33 minutes:
https://youtu.be/O4uXpmeKM7g?si=e_UMc3phrMoTvfcC
For all your conversion needs:
https://www.onlineconversion.com/
Low Pressure Sprinkler Heads:
https://www.senninger.com/irrigation-product/xcel-wobblertm
Low Pressure Drip Emitter Test:
https://pubs.nmsu.edu/research/agmech_eng/RR773/index.html
Andrew Millison’s links:
https://www.andrewmillison.com/
https://permaculturedesign.oregonstate.edu/
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