How Gravity Irrigation Works

🎯 Key Takeaways for quick navigation: 00:00 Water moves by gravity without electricity, governed by physics. 00:39 Water pressure is 1 psi for every 2.5 ft of head. In metric, 1 meter equals 1/10th of one bar. 01:06 In flat landscapes, flood or furrow irrigation can use low-pressure gravity. 01:35 For pipes and irrigation systems, height above the point of use determines pressure. 02:02 Drip irrigation needs a minimum of 10 psi, requiring water storage at least 25 ft above. 02:55 Sprinkler systems require at least 30 psi, needing water storage 75 ft above the outlets. 03:36 Check product specs for minimum and maximum pressures; consider elevation and friction loss. 04:04 Friction loss in pipes affects pressure at the outlet; use charts to determine friction loss. 04:59 Float valves maintain a steady water level in troughs or tanks, ensuring a constant water supply. 06:07 Siphons use gravity to move water over obstacles without the need for fuel or electricity. 07:04 In rainwater harvesting, a "wet system" allows water to flow down, up, and into a tank. 07:31 Gravity irrigation principles can transform landscapes sustainably without the need for external power. Made with HARPA A

honestly this channel is fascinating

Not sure where the greater genius lies, within this guy, Andrew Millison, or the ppl who saw the overall benefit in providing him with any tools he needs.

No one teaches permaculture better than Andrew. Just bought a 36 acre farm in Western Colorado, I got elevation, multiple springs.

Year's ago I learned to flood irrigate in Western Colorado. Standing in a field of grass while using nothing but a 00 shovel I found peace. I still have that shovel. The hardest lesson to learn seemed pretty simple. Water flows downhill.

That water pipe going up to the container is such a simple fix. I thought there was only one place where I could collect rain water off my house, but this opens up a lot more possibilities.

I truly believe Your channel is the most important channel on youtube this will be studied for centuries as the knowledge on your videos is absolutely timeless

I wish I had seen this video six months ago before renovating my landscape. I feel fortunate to have learned enough from your previous videos (and the work of others) to make sure my first renovation was successful. You are providing the 2024 Spring to-do list! Thank you for your efforts. Your work is greatly appreciated

I used this channel to write a book and a project to submit help our nation. This guys input was amazing. I can now clearly give info on permaculture farming and water usage and harvesting

Has to be one of the best permaculture YouTube channels I've found

Great primer Andrew! Always excited to see your new videos come out.

The coolest video on youtube!

Thank you for increasing awareness to these methods. It would do well for parks and forest services as well as farmers, ranchers, and townies to adopt rainwater harvesting methods using (primarily) onsite materials. The West and Midwest, as well as internationally critical areas need these methods. This is important to build resiliency for now and in the future.

You are a true hero of our world. Thanks for sharing all your knowhow. Even sitting at home we can study.

I learned so much in my PDC pro class and was so excited to receive my certificate signed by Andrew himself. Its the most inspiring knowledge and I continue to grow and imagine solutions to permaculture problems with this invaluable knowledge gained. Andrew you are an angel in this world, one day I hope to meet you and work with you. Absolutely brilliant.

Thank you sooooo much!!! I've been looking for a visual on this info. Reading it just left me with so many questions. You made it make sense!!! My garden thanks you as well!

This is the 2nd time I got fascinated again with YouTube's content. The first one is Kurzgesagt.

This education is priceless! Thank you Andrew!

This is what I needed to get me back on track on a current site; I really appreciate your work it is amazing thank you. I would love to work with some future projects, I have some really great ideas that complement your expertise.

Wow these videos never disappoint! Amazing work once again: not only are they so informational and well made but they also put me in such a good mood because they give concrete ways to take action in the face of climate change and subsequent newly arising hardships: I really believe that if we want to get some change going we have to feel empowered and the rhetoric surrounding climate change cannot just be "do less of something" because as humans we are not very good at that; but in your videos the rhetoric becomes more of a "there are these following things we can do better than in the past: let's construct in this more efficient way, let's do that in this better way" which is a type of message that is very motivating and positive and that as humans we respond very well to :) Also this video is very empowering because it gives people the ability to do some back-of-the-envelope calculations even if they are not engineers or have some similar degree: quantifying something really helps in not building things that won't work anyway and this way it becomes easier for someone to quantify even a small diy project.