I only posted here because I knew there were a few folks who've had in
interest in some of the solar stuff (and because I like to share good
news with friends).
I'm happy to answer questions when and as best I can - but the best
place for ongoing discussions of this stuff is next door in
This has been fun for me because the other newsgroups seem to fill up
with people who like to intellectualize a thing to death, and the wreck
has an abundance of people who like to roll up their sleeves and /make/
Fear not - I'll bring this up again when there's more news to share... :)
Well while it's still here, I have a couple of questions. Have you
successfully pumped water from a significant depth using the collector you
describe? What was the depth and what flow of water did you achieve? Did
you have good conditions (clear sky, bright sun) for the test?
No (haven't tried). N/A. N/A. If I had done the test, I would have done
it on a clear day with bright sun.
I've only been working on engines, and although I recently picked up a
pair of PVC check valves, they're still sitting on the bench. Strange as
it may seem, I'll probably be the last of the group to build a pump -
and may never, since my part of the job is rapidly turning into that of
advisor, coach, and cheering section. The work that I had been doing is
being spread out enough ways that shortly I may be able to retire from
the field - no longer being needed is one of my criteria for success. :)
The lads in Pakistan did pump some water, but not from any depth (and
they seemed to have some problems with both their pump connection
plumbing and with their too small bore spring-loaded check valves). I
haven't heard from them since just before graduation time, so don't know
if they're still working on their pump (I'm guessing maybe not at present).
I've shifted my development efforts to an all-metal design that uses the
trough collection pipe itself as the hot head - so we'll all have to
wait for a report from Argentina to know how well this pump performs.
To my knowledge, this pump isn't a re-hash of anything that's been done
before. My web page with the pump design was posted only a day after I
e-mailed the original drawing to Argentina, and I posted here while that
web page was still in preliminary form. What you're seeing is a snapshot
of in-progress R&D, and "Team Argentina" is, indeed, pushing the leading
can withstand relatively high heat, and are strong/light weight. I've
got a friend that is a guru in this area. He calls his garage the
"Central Okla. Military Industrial Complex." Would be glad to put you
in touch with him.
Would be glad to help more with these ideas. Contact me off-list if
Bespoke Consulting and Design LLC
they have low air usage are fairly simple mechanically, might be ideal for
in the well pump.
something along this line could probably be made from pvc.
I use a lot of check valves for all sorts of things at work and home,
there are none available for any price that are long lasting and that
You can have one but not both. I remember the old hand well pumps had
checks, very easy open, and perfect seal, best of all the repair was dirt
Those are pretty neat, and there's a strong resemblance between the
fluidyne and a _half_ of one of those pumps. Where Yamadas operate on a
supply of compressed air, the fluidyne operates on the pressure of
expansion and contraction of a fixed volume air and substitutes a fluid
piston for the diaphragm piston.
I remember watching an uncle replacing a kitchen sink pump leather with
a new deerhide leather. IIRC he spent more time deciding from where on
the hide the new leather would be cut than on the actual repair. :)
I suspect there will be more than a few of these pumps with leather
Thanks! I'll guess that your spelling is correct. Beside butchering
English, I can make myself misunderstood equally badly in French and
Portuguese - mas no hablo. Fortunately, the Argentine engineering
students seem to consider learning English an essential part of their
technical education, and that's made it easy for me.
( Hmm - I have a nephew who works at Rosetta Stone, I wonder if he can
get me a good deal on a Spanish course... )
Heh - not sure about noble causes, but it's fun! If it succeeds, it'll
be because the kids down there are all more qualified to bring this off
than I. It's always somehow reassuring for me to (re)discover that there
are smart people everywhere. :)
A 5m (about 16-1/2 feet) deep well should be a slam-dunk - but I'm
hoping that everyone involved learns enough that we can put our heads
together to design a 10m solution. /That/ probably won't be so easy, but
it's an important next step...
By the end of this year it looks like there'll be six teams spread over
five continents - a major improvement over one old duffer tinkering by
himself in a drafty aircraft hangar in the middle of nowhere.
Many hands make light work.
[ No apologies for the pun :-D ]
Ooooh - I hope so! According to the UN, there are about a billion (a
thousand million) people with a /severe/ water supply problem. A lot
(but nowhere near all) of them are in Africa.
Thanks. I'll pass those along to the folks who're doing the real work.
Alas! There's no profit in this project. All involved are unpaid
volunteers who've agreed to put everything learned about making these
things into the public domain. The goal is to come up with a design that
can be produced inexpensively everywhere by anyone with only simple tools.
There's no shortage of challenges, but as more people have become
involved, the pace of development has picked up considerably.
I'm involved with a couple organizations that provide aid and training
and other things to Africa.
One is called the "Mocha Club," because they focus on how much only $7
(two mochas) a month can do for families and communities.
* SUSTAIN life for 1 person living with AIDS.
* PROVIDE clean water to 7 Africans for 1 year.
* SAVE 1 person's life from malaria.
"Playing is not something I do at night, it's my function in life"
I think the politicos will continue to watchfully ignore all of this,
since it isn't likely to produce campaign contributions - but may
provide something for which they can claim credit when the work is done. :)
Heh - actually I've been more what Robatoy (in one of his more polished
moments) might call a paddlemaster - almost an /agent/ /provocateur/. :)
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