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homebrew hydro update: coanda water intake - Page 2

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Posted by z on February 21, 2009, 11:39 pm

thanks i've been wanting one of these for like a decade.. finally got it!

Yeah a little water follows the round bar under the screen down, but not
too much.

You can see the little streams in this pic at the bottom of the screen.

I suppose I could attach a little cross bar down there to allow that to
drip back into the barrel.  Maybe for low water times that might make a

Yeah, be interesting to see how it does next fall when the leaves are realy
bad.  It looks like where the water actually hits, the debris are cleaned
and slide down to where there isn't any water striking.  So hopefully in
high water the flow will just clean the whole thing .. we'll see.

I'm probably going to cut another barrel to try and get a better angle for
it -- and I need to actually attach it some how.  For now its just sitting
on there held by some rocks.  


PS looks like a rain storm coming in .. not supposed to be huge but should
be a good little tester


Posted by harry on February 21, 2009, 7:09 pm

Re the weather, you are suffering from sod's law, ie if if it can go
wrong it will.
I think you need to cover your screen from daylight to discourage the
growth of moss and algie  which would block it up. I had a similar set
up myself once & the moss was a problem.  Needed a wire brush to get
it off.

Posted by z on February 21, 2009, 11:43 pm

I know -- likely jynxed myself into a giant flood by bitching about the
lack of rainfall.  Do need a good jag of water to bring more steelhead up
though.. double edged sword :)

Thats something I hadn't thought of, but yeah -- that sucker will be
covered in moss (like everything else around here).  Not sure how i'd put
it into the actual dark .. building a structure up there would be a
serious pain in the ass.  Probably just have to stash a wire brush up
there like you said and clean it once in a while.

I can live with that solution -- or maybe there is some kind of non-toxic
teflon spray I can hit it with if the moss gets too agressive.  

Have to just see how it goes..



Posted by Morris Dovey on February 22, 2009, 8:22 am
 z wrote:

I'm absolutely dazzled by that screen! Thanks for posting the pix and
the link to the manufacturer's web site.

The rain will come - and as farmers say, it's "none or too much". :b

Morris Dovey
DeSoto Solar
DeSoto, Iowa USA

Posted by Bob F on February 23, 2009, 5:34 am
 Morris Dovey wrote:

It's looking like that'll happen in the next few days. At least a little north
of z.

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