Posted by z on February 21, 2009, 11:39 pm
> z wrote:
>> I finally built a weir in that little stream and got the coanda
>> screen installed .. its still in testing. It is amazing how much
>> water flows through those 1 mm gaps. Water is still very low ..
>> crazy winter.. snow and cold but very little rain. Normally i'd be
>> swimming up there but its only as much water as you'd expect in the
>> first part of fall or late spring.
>>
>> So i'm waiting for the big rains to test it .. but not too big ..
>> ain't asking for a flood :)
>>
>> here's the pics n stuff i've been doing. Had a few beers up there
>> today so i'll have to proofreed tomorrow heh. Still using the old
>> intake till I get this set in.. need a few more fittings to get her
>> going where I want before I glue it all together.
>>
>> http://www.homebrewhydro.com/coanda_water_intake.html
>>
>> upshot is the screen looks like it will do the job -- the real test
>> is coming with the rains -- unless Al Gore is right and my rain
>> forrest turns into a desert.
>>
>> cheers
>
> That's pretty awesome there Z.
thanks i've been wanting one of these for like a decade.. finally got it!
>I can see that the angle of the screen
> allows the debris to just roll/flow right off out of the way. Is
> there any water that doesn't fall through the screen into the
> collection?
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.
http://www.homebrewhydro.com/homebru_weir_001.jpg
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
difference.
>
> Guess the only thing you might have to do is go up there once in
> awhile and clear the piles of debris away from the screen.
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.
>
> Thanks for sharing.
Likewise!
PS looks like a rain storm coming in .. not supposed to be huge but should
be a good little tester
-zachary
Posted by harry on February 21, 2009, 7:09 pm
> I finally built a weir in that little stream and got the coanda screen
> installed .. its still in testing. It is amazing how much water flows
> through those 1 mm gaps. Water is still very low .. crazy winter.. snow
> and cold but very little rain. Normally i'd be swimming up there but its
> only as much water as you'd expect in the first part of fall or late
> spring.
> So i'm waiting for the big rains to test it .. but not too big .. ain't
> asking for a flood :)
> here's the pics n stuff i've been doing. Had a few beers up there today so
> i'll have to proofreed tomorrow heh. Still using the old intake till I get
> this set in.. need a few more fittings to get her going where I want before
> I glue it all together.
> http://www.homebrewhydro.com/coanda_water_intake.html
> upshot is the screen looks like it will do the job -- the real test is
> coming with the rains -- unless Al Gore is right and my rain forrest turns
> into a desert.
> cheers
> -z
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 finally built a weir in that little stream and got the coanda
>> screen installed .. its still in testing. It is amazing how much
>> water flows through those 1 mm gaps. Water is still very low ..
>> crazy winter.. snow and cold but very little rain. Normally i'd be
>> swimming up there but its only as much water as you'd expect in the
>> first part of fall or late spring.
>>
>> So i'm waiting for the big rains to test it .. but not too big ..
>> ain't asking for a flood :)
>>
>> here's the pics n stuff i've been doing. Had a few beers up there
>> today so i'll have to proofreed tomorrow heh. Still using the old
>> intake till I get this set in.. need a few more fittings to get her
>> going where I want before I glue it all together.
>>
>> http://www.homebrewhydro.com/coanda_water_intake.html
>>
>> upshot is the screen looks like it will do the job -- the real test
>> is coming with the rains -- unless Al Gore is right and my rain
>> forrest turns into a desert.
>>
>> cheers
>>
>> -z
>
> Re the weather, you are suffering from sod's law, ie if if it can go
> wrong it will.
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 :)
> 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.
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..
cheers
-zachary
Posted by Morris Dovey on February 22, 2009, 8:22 am
z wrote:
> here's the pics n stuff i've been doing. Had a few beers up there today so
> i'll have to proofreed tomorrow heh. Still using the old intake till I get
> this set in.. need a few more fittings to get her going where I want before
> I glue it all together.
>
> http://www.homebrewhydro.com/coanda_water_intake.html
>
> upshot is the screen looks like it will do the job -- the real test is
> coming with the rains -- unless Al Gore is right and my rain forrest turns
> into a desert.
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
http://www.iedu.com/DeSoto/
Posted by Bob F on February 23, 2009, 5:34 am
Morris Dovey wrote:
> z wrote:
>> here's the pics n stuff i've been doing. Had a few beers up there
>> today so i'll have to proofreed tomorrow heh. Still using the old
>> intake till I get this set in.. need a few more fittings to get her
>> going where I want before I glue it all together.
>>
>> http://www.homebrewhydro.com/coanda_water_intake.html
>>
>> upshot is the screen looks like it will do the job -- the real test
>> is coming with the rains -- unless Al Gore is right and my rain
>> forrest turns into a desert.
> 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".
It's looking like that'll happen in the next few days. At least a little north
of z.
>> I finally built a weir in that little stream and got the coanda
>> screen installed .. its still in testing. It is amazing how much
>> water flows through those 1 mm gaps. Water is still very low ..
>> crazy winter.. snow and cold but very little rain. Normally i'd be
>> swimming up there but its only as much water as you'd expect in the
>> first part of fall or late spring.
>>
>> So i'm waiting for the big rains to test it .. but not too big ..
>> ain't asking for a flood :)
>>
>> here's the pics n stuff i've been doing. Had a few beers up there
>> today so i'll have to proofreed tomorrow heh. Still using the old
>> intake till I get this set in.. need a few more fittings to get her
>> going where I want before I glue it all together.
>>
>> http://www.homebrewhydro.com/coanda_water_intake.html
>>
>> upshot is the screen looks like it will do the job -- the real test
>> is coming with the rains -- unless Al Gore is right and my rain
>> forrest turns into a desert.
>>
>> cheers
>
> That's pretty awesome there Z.