Do Peter Andrews leaky weirs really work?
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- čas přidán 30. 10. 2023
- In this video we have a look at the leaky weirs we have in our creek lines and talk about how they are suppose to work.
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Haven't a clue why youtube recommended this video for me, but I found it really interesting.
Hi Ken, I am glad you enjoyed it.
Thanks from Geoffrey
I have been applying this on the creek running through the land I am on. It definitely makes a difference when it rains.
Hi, I am glad it is making a difference for your creak.
Thanks from Geoffrey
In North America beavers are being used to regreen creeks and build wet lands.
Hi, yes I have herd they are using beavers. I guess they do a very similar job to the weirs.
Thanks from Geoffrey
Yes, but you could not controll them
I have both of his books and have scanned them so I can give them to friends that are interested. The remediation works seem so practical! I would love to see you do a series of videos every year or so to see how the areas develop.
Hi, sorry it has taken me so long to reply.
His books are great books.
I have done an older video showing some of the other work we have been doing
Regenerating salt affected land
czcams.com/video/vTwgSvjD9SI/video.html
I will keep showing this as everything grows and the land hopefully becomes healthy again.
Thanks from Geoffrey
I think you just admitted online to illegally redistributing the books 😆
What are the names of the books?
Nice one old Mate. I think Peter Andrew’s came from NSW. Did a lot of work around the Hunter Valley if my memory serves me correct 👍
His property in the Hunter was called Tarwyn Park.
Hi John, I am glad you enjoyed my video. Yes that is correct and at the time he got in a lot of trouble from the agg department for what he did.
Thanks from Geoffrey
Fantastic job on both those weirs. Looks like the downstream side of both of them could really use another leaky weir each to start filling up those eroded channels.
Hi, we are gradually building more weirs. Yes they do both need another one below them and then up stream as well. It’s a very long term project.
Thanks from Geoffrey
Looks to be a great idea, thanks for the demo
Hi, it seems to work well and is almost free to build I do need to put some smaller rocks in the big one to slow the flow a bit more.
Thanks from Geoffrey
Peter Andrews’ books, Beyond the Brink and Back From the Brink, are a great place to learn about his visionary work.
Hi, thanks for the names of his books. I always forget what they are called.
Thanks from Geoffrey
For a moment I thought you were going to criticise Peter Andrews, so I am glad you recommended his methods at the end. 😅
He did some great work and the weirs are working well.
Thanks from Geoffrey
I like that version. I will replicate yours very soon on my place.
Hi, it is a very easy and cheap way to build them. Good luck with your creek lines.
Thanks from Geoffrey
good job mate
Hi, thanks. They are doing a great home.
Thanks from Geoffrey
Cheers mate
Thanks
Good on you mate
Hi, thanks, I am gla d you enjoyed it.
You mentioned salt marsh I think? Is the white stuff on the banks of the smaller creek salt?
Hi David, yes the smaller creek was a dry salt pan when we bought the property. It has improved a lot over the last few years. Yes the white stuff is salt that is still remaining.
czcams.com/video/vTwgSvjD9SI/video.htmlsi=wO40YTiNduDIXS9i this video has some photos of what it looked like before we planted anything.
Thanks from Geoffrey
Nice trick to know
They work really well if you use smaller rocks.
Thanks from Geoffrey
make the bottom half of the dam impervious to leaks and then smaller aggregate on the next quarter and big rocks on top quarter also wing out the top of the dam so that water can't cut around it. Dam should be 6" to a foot lower than the top of the bank.
Hi, thanks, yes we are working on putting wings on the weirs to spread the water. The big weir was just built by dumping rocks with the front end loader and we realised that this is not the best way to do it. The more recent ones are built with a more graded agrigit to keep more water in the lower part.
Thanks from Geoffrey
slow water running into the creek area shallow contour with disc plow above tree line slow water shedding
deep rip as well
Hi, yes we do some ripping and contouring. We also try and seed along the contours where posable.
Thanks from Geoffrey
At 1,31 minutes in the video you pan the camera a little and show a crossing about 15 yards downstream from the weir. place another little leaky weir there as a crossing, only 2 or 3 rocks high and wide enough to drive over. P Andrews sometimes did things in pairs. They will protect each other and grow a lot of interesting grasses.
Hi, there actually is a small weir on the lower side of the crossing, you just can’t see it from this angle. It needs to be build up another few rocks to make it work better. Thanks from Geoffrey
need 12 t digger and tilt bucket batter banks back grass wont grow well on vertical bank
Hi, no the grass wont grow o the vertical bank, but gradually the water and silt are changing the shape of the bank for us.
Thanks from Geoffrey
Why has it taken so long for us to figure out an effective way to not only conserve water, but add ground moisture and replenish water aquifers at the same time.
The US and the UK are reintroducing beavers into degraded waterways and the results are spectacular.
In the UK, who hunted their beaver population into extinction 400 years ago, it's more about recreating wetlands that once covered the island and flood mitigation.
Hi Chris, I don’t think it’s that we didn’t know, it’s that we have forgotten about a lot of old technology and ideas that we Euston just use as a matter of course. We are now trying to reinvent the wheel.
I have herd about the reintroduction of the beavers. I am glad it is making a difference.
Thanks from Geoffrey
It is hard for people to understand something they get paid to not understand. I think Peter Andrews is not the most diplomatic of people, he's a brilliant visionary but not much of a diplomat, as I understand it. There is a nice documentary about his struggles here on youtube, titled "How Peter Andrews rejuvenates drought struck land" or something to that effect.
how long ago were they built?
Hi Michael, they are about 3 years old. The small one filled up really quickly. The bigger one needs some smaller gravel put in it.
Thanks from Geoffrey
Would be a good idea to establish what's upstream and what's downstream first, and then explain what's going on. There's no depth perception in a video, so it's really hard to tell just by looking. But if you explain it a bit more right at the start, it will be a lot easier to grasp what's going on.
Hi James, thanks for your comment. I will try and give a better explanation next time i am talking about the leaky weirs.
Thanks from Geoffrey
That's a good weir
Hi James,
Thanks, they are easy to build like this.
Thanks from Geoffrey
like it,,, I like the first bigger weir the best,,,although there is somethimg missing, Peter Andrews has a diversion drain at the flood level that will divert water to the floodplain in a flood event , sometimes going a few hundred meters.. Yours doesn't have that yet ?? Peter Andrews did not invent this nor did he start it. Other ancient cultures have done this for centuries, the yeminis did this, the arabs did this in oasis areas, beavers do this. There are others also. And, the big "And" whilst P Andrews had knee high clover on the flood plain in February due to his methods, remember P A Yeomans had knee high clover on the ridges , not just the flood plain. just sayin !
Hi, yes we plan to make a contour bank out along the flood plain, we just haven’t managed to do it yet. I am awake that he didn’t invent them, but it is the easiest place to direct people to go and get more information. Some of the African countries also have some interesting water catchment techniques. Yeomand did some really interesting things too. I need to go back and read his work again to use abit more if it. Thanks from Geoffrey
@@brookdalefarm7986 Yeomans v Andrews .- Andrews does creek restoration and floodplain restoration whereas Yeomans does upper catchment type restoration, Yeomans' work is basically above the floodplain, although there is nothing stopping one from keyline ploughing the floodplain, it works quite well. Just quickly, love the mechanic work you do,,, farm mechanics is real good do it yourself stuff.