Quit screwing around wasting water and get back to work finishing that stream!
A undershot wheel is more efficient because the bottom of the wheel is going
in the same direction as the water in the stream, that is what my research has
shown when I was looking for ideas on wheel design.
The stream is my wife’s responsibility, she volunteered. 
Well, I’ve just learned something - I always had the overshot image in my head too.
Great build, thanks for posting Mark. Looking forward to the final installation.
Cheers
N
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I’ve only seen undershot wheels having the current being in a channel beneath the wheel.
But heck this makes sense, using the backside blades like that.
Learning something new every day… 
Oh, boy, a cliffhanger!
This started out as a kind of joke between wife and I and our three daughters. They think we are crazy. It is now going to be a reality. We built the wall for the RR two years ago and are now taking it down and moving it over to the ditch on the left for more room for the RR. Block party Saturday will see how many takers we have.
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The inevitability of RR ownership, More is always less than you wind up needing
Progress. I am trying to get the first row down before Saturday when the help shows up. That way all we have to do is stack blocks. The first row has to be level and it takes the most time.
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Lot of progress today thanks to our daughter and her husband. We moved a lot of blocks and dirt. Now we have to order more blocks.
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Are you planning to have a dip so you can put in a trestle (as Cliff how to make one )
I have a trestle and no I will not be adding another one. The blocks will be higher after we get more.
Wow Mark, that’s such an amazing wall. It must be so satisfying to lay those blocks, and create your new spaces, boundaries and volumes. Nice work.
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The hard part is getting the first row in as it has to be level front to back and side to side and match the height of it’s neighbor once that is done it don’t take long to build a wall. Yes it is satisfying to get that much done. Vary thankful for a daughter and son in law that is not afraid of manual labor .
