List:

The "Trompe/Bubble pump air compressor heat engine" is a figment of
the imagination and cannot work at all in any way as proposed and
"explained." Ask the designer/author why if it is such a wonderful
machine that he has not built one to demonstrate its viability.

Advocacy talk is cheap, a genuine working example is hard to refute.

spingears

--- In pulserpump@yahoogroups.com, "Archimedes Submerged"
<archimerged@...> wrote:
>
> See article here:
>
> http://renewableenergy.wikia.com/wiki/TrombePump
>
> Thanks for looking and I look forward to comments and questions.
>
> -- Archimerged
>

See article here:

http://renewableenergy.wikia.com/wiki/TrombePump

Thanks for looking and I look forward to comments and questions.

-- Archimerged

Hi,

I'm working on designing efficient heat engines which can operate off
the daily temperature fluctuation.  My latest design uses a trompe
connected to a bubble pump with the water in a closed cycle.  It
captures atmospheric pressure air and compresses it to a pressure
depending on the height of the water columns.  Heat and "cold" is
stored in the water and the amount of heat and cold stored depends on
the size of the water reservoirs.

You can read more at my blog and make comments,

http://archimerged.wordpress.com/

or actively work on the design at

http://renewableenergy.wikia.com/

I welcome readers and comments.  I hope to find experimenters,
although after I have a design I may do some experiments myself.

-- Archimerged

Thank you for keeping me still on your mailing list.

   One thing  I know is Big Business sponsored most of those successful men -
politicians and artists to get where they are. Big business can not stand by and
let you ruin them with your simple down to earth inventions so I do not believe
you should look too far in that direction.They must make profits at the expence
of the very people you are trying to uplift. Where they help, there must be a
lot of publicity in all the media showing how kind hearted they are to think of
doing something for the poor who they fleeced in the first place. It is the poor
themselves who will take this thing and make it work for them.

   Last time I wrote you, I said I was trying to repair my pond. Almost a year
later,and many unsuccessful atempts, I have decided I have to re-construct the
dam. I have succeeded in making a sketch which I am now sending, hoping that you
may be able to give me a working drawing of a pump which will assist in pumping
water above the crest of the dam into the concrete tanks behind the dam. If I
can do this and succeed, then I can, without any hesitation, become an apostle
of your  pump and bring it to the attention of others like me, who will be
grateful for this opportunity.

   I look eagerly forward to hearing from you so that I can incorporate the pump
in the construction of the dam.

Brian White <gaiatechnician@...> wrote:
   I got a very nice message from a group member(I dont know if I have
permission to post it). Rest assured, I will still push people and
institutes to do independent research on the pump and related matters.
I think it is indefensible that so many people have done nothing to
validate this device for those in the 3rd world who simple do not have
the money to risk on a venture with uncertain results.
It would cost a college or university only a couple of hundred dollars
for equipment to investigate and publish the data about the wide
parameters  under which these pumps work.  The staff are paid, the
knowelege about conducting experiments is there and  the students are
supposedly looking for novel projects on which to make their name.
What gives?
What to do to fix the problem?
I do not believe there is a cure for apathy!
How about important people and celebritys?
I know someone who is friends with George Bushes uncle. So, I am 2
people away from the most powerful leader in the world!
And one of my friends was friends with Sarah McLachlan before she
became famous. So, I guess that if I really needed to, I could get a
personal message through to either person.
Perhaps you know someone who is a celebrity and who is interested in
using his or her status to do something useful for the 3rd world?
How about bring the pump to their notice? A little push from a singer
or an actor or a politician and people perk up and listen and do their bidding!
And lets face it, nobody is listening to me.
Thanks for help.
Brian White









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[Non-text portions of this message have been removed]

I got a very nice message from a group member(I dont know if I have
permission to post it). Rest assured, I will still push people and
institutes to do independent research on the pump and related matters.
I think it is indefensible that so many people have done nothing to
validate this device for those in the 3rd world who simple do not have
the money to risk on a venture with uncertain results.
It would cost a college or university only a couple of hundred dollars
for equipment to investigate and publish the data about the wide
parameters  under which these pumps work.  The staff are paid, the
knowelege about conducting experiments is there and  the students are
supposedly looking for novel projects on which to make their name.
What gives?
What to do to fix the problem?
  I do not believe there is a cure for apathy!
How about important people and celebritys?
I know someone who is friends with George Bushes uncle. So, I am 2
people away from the most powerful leader in the world!
And one of my friends was friends with Sarah McLachlan before she
became famous. So, I guess that if I really needed to, I could get a
personal message through to either person.
Perhaps you know someone who is a celebrity and who is interested in
using his or her status to do something useful for the 3rd world?
How about bring the pump to their notice? A little push from a singer
or an actor or a politician and people perk up and listen and do their bidding!
And lets face it, nobody is listening to me.
Thanks for help.
Brian White

Over the last couple of years, I get ocasional emails about pulser
pumps for different locations, I give out info, and wait for the pics
of the pumps or pump models (Which never have come).
Whatever. Thats how people are, I guess.
Anyway, the pump i made long long ago is still working.
I think I made it in 1988. I assumed it stopped working a coulple of
years back because they built a shed almost on top of where the  pump
is placed. But it didnt. I mentioned it to my sister today when i
foned home and she said they used it a lot this year.

  Things have changed a bit since the late 80's and my brother Neil
installed big rain collectors in the sheep shed so mostly they fill
enough over the year to tide the sheep over. February was dry so he
used the pump a little to provide for them but mostly he has used it
to send water to his cattle housed in a different shed. (cattle in
ireland are often housed in the winter months because frost and rain
and cattle feet tear up the ground a whole lot).
Anyway, my sister Miranda said it has been really useful this spring
for sending water to the cattle! So, it might make 20 years in
service! not bad for about 25 feet of 4 inch diameter pipes, a swept t
joint, about 20 ft of 3/4 inch pipe and a waste 5 gallon plastic
formic acid can!
  No moving parts is a pretty useful attribute,I think.
Have a good day,
Brian

The spirit of amateur science died and moved to the Asia!
A young man in the Philippines is currently doing a pulser pump
project in his physics course. I cannot understand why it didnt happen
here years ago.
People are so involved in a high tech world they cannot see the value
of low tech for people with less money.
There is also a project in south africa at the evaluation stage for a
pump about 10 times the size of my 15 year prototype.
Hopefully I will have definite news in the new year.
It has been so disheartining getting insulting replys to  messages I
have put on the net in newsgroups and the like. Just as bad to be
universally ignored by universitys, technical schools and
environmental agencys.
I wish people were more curious.
Best of luck and thanks for joining this quiet group
Brian white

Jaanus Jogi sent me this link to a back issue of mother earth news
and
their trompe explaination
(It is great to find tromp info in a reputable magazine.(So many
people do not understand the tromp concept or accept that it might
work!)
http://www.motherearthnews.com/arc/4300/ The trompes they used in the
olden days were huge and deep. Please note thatI do not advocate
trompes that are deeper than necessary  but I believe large ones are
fine. Those old trompes were sooo deep!
Brian

http://www.wetenschapsforum.nl/viewtopic.php?p=26222#26222
is an amateur science forum in the Netherlands. I posted a call for
them to try the pulser pump a couple of months ago and sure enough the
first few replys were the usual sarcastic insulting jokes.
But people are now making models (admittedly piecemeal ones (but big)
so far) and starting to ask questions too! So, perhaps if you need
independent confirmation that it works, that is probably the best
place to go at the moment! It IS a dutch forum but they have been kind
enough to post some in english for me. Bring your babblefish or other
translator, I guess.
Take care
Brian

Well, since the last message, there hasn´t been anything concrete new.
A New Zealand teacher has emailed saying that he will make a syphon
pump with his students. More links have appeared to the pulser pump
page and the counter statistics show it to be among the top nedstat
science pages in canada (visitor wise). I am pleased that increasing
percentages of visitors are coming from poorer countrys. Those are
probably the countrys where the technical simplicity of the pump and
minimal maintaince are more appreciated. A guy in china recently said
that he had problems accessing the page. (I have had web visitors from
china since then). I would be pleased if any of you put a synopsis of
the pump on your website in your language or just mirror the pulser
pump site in your language. There is possibly less than 100,000 people
around the world  know the pulser pump exists as a water power option.
Many of those are technical people and still NO PEER REVIEW!
That absolutely stuns me! So all those 3rd world agencys are just
fundraising? Sierra club is just a moan club? With all the politicians
stumbling to try to get 3rd world debt (owed to countrys other than
their own) forgiven, wouldnt you think they might fund a week
researching this pump. A physics professor working for a week could
find the limits of the pulser pump pretty quickly. I dont know how
high it can pump, the best pipe sizes or best airspeeds for horisontal
or vertical waves.
  The guy in China tried to get  collegues interested but it was a no
no because they only researched Hydro electricity!
Get with the programme folks. YOU CANNOT MAKE VIABLE HYDROELECTRICITY
FROM A 2 FEET HIGH WATERFALL! The capital costs are too high. There
are millions of unused 2 and 3 ft waterfalls round the world. You can
join them up and flood millions of hectares of land or use pulser
pumps to irrigate said land. It looks like a pretty easy choice to me.
Have a good day
Brian White

My yahoo account has been bombarded with spam including huge
attachments of late. Apologys if any of you tried vainly to contact
me. Try the same username at operamail.com if your message is
returned. There has been a steady increase in page views at the
website lately and much more from poorer countrys. (The internet
getting bigger). Very few pulser related messages to me though. I have
put fairly decent animations of my first water powered suction pump on
the web. It might be an interesting physics toy for somebody. http:
//nxtwave.tripod.com/suctionpump/index.html
The internet glossary of pumps has a flash part now and all the pumps
are animated there. For me, it is neat to have the pulser pump
included with a pump from a guy called Nikola Telsa. One of my
workmates Idolizes him!
  http://www.animatedsoftware.com/elearning/All%20About%
20Pumps/glossary/aap_glossary.html
takes a few minutes to load but worth it!
Not much else to say, if you make a pulser pump or syphon pump
(however small) please let me know. The general public probably will
not move until I get peer review.
The group will remain moderated to protect you from offensive spam.
Anyway, enough said. Take care, have a good end of year,
Brian White

I am indebted to Gordon Cougar  for the  link below.
Aparently, Albert Einstein was interested in airlift to  such a
degree that he had international patents on a refridgeration machine
based on it!
There is some research info at the link below which might be
applicable to pulser pumps. Should be an interesting read for those
of you who are into the fine detail of 2 phase flow.
Hopefully, I will be able to do a synopsis of the relevant findings
and post them here.
Brian White  the research link is below
  http://www.me.gatech.edu/energy/andy_phd/one.htm

I repeat, It isnt like a ram pump! GRRRR. Totally
different working principle.
I will help you with the design if you have a suitable
site. Sites with low head and lots of water are
numerous and generally not in use for power
production. I guess the usual economic limit (minimum
size) for a useful pulser pump is about 600 liters of
water per minute falling 0.5 meters.
  I do not know how well they scale up to higher head
and larger flow rates. I gestimate that double the
head will give a bit more than double the power but, I
really dont know. Feedback will help answer this
question!
Anyway, best of luck
Brian White


--- "T  <edenproj@...>" <edenproj@...>
wrote:
> Very much like the old Ram Pump only with no moving
> parts. It does
> need a lot of water though and the limitations do
> need to be
> understood in terms of head and lift possibilities.
> Also reminiscent
> of the bow jon. Sweet! Keep up the good work and we
> will want to use
> this technology in the Eden EcoVillage Community.  -
> T
>
> http://www.edenvillage.net
>
>
>
>


__________________________________________________
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Very much like the old Ram Pump only with no moving parts. It does
need a lot of water though and the limitations do need to be
understood in terms of head and lift possibilities. Also reminiscent
of the bow jon. Sweet! Keep up the good work and we will want to use
this technology in the Eden EcoVillage Community.  - T

http://www.edenvillage.net

These videos show pumping to about 4 ft with the small deeper pulser
pump providing the power. (The earlier videos show the pump that uses
6 inch pipes just acting like a fountain).
The rate at that height is about 8 litres per minute. (2 standard
watering cans worth)
best of luck
Brian White

I will be blasting Burts little offering. But the facination with ram
pumps is widespread. They are useful no doubt but are certainly not
the cureall that so many people believe. If you head over to Evans
Engineering, you will find that they made them for decades but now
make propeller turbines in place of rams. This because the ram
spring, clack valve and a few other components must be of extremely
high quality. If something goes wrong, it is not so simple to fix.
Anyway, dont take my word for it, see for yourself at
http://www.microhydro.com/
I expect my brother's next video to be more informative.
Anyway, take care, and try it before you Blast it
Brian White
--- In pulserpump@yahoogroups.com, "burt_blastoid
<burt_blastoid@y...>" <burt_blastoid@y...> wrote:
> According to the videos and logic, the pulser pump is a looser. Why
> not get a RAM pump. At least they work.
>
> Burt
>
> --- In pulserpump@yahoogroups.com, "Brian White
<gaiatechnician@y...>"
> <gaiatechnician@y...> wrote:
> > Just a note that my brother sent 2 video clips of a small pulser
pump
> > back in Ireland. They are short ones without sound.
> > They show the 6 inch pump stripped of its cowl and the water
pulsing
> > from one of its airlift pipes. There is a slight whirlpool in the
> > foreground of one of the videos and that is the water going down
the
> > 6 inch pipe.
> > Hopefully there will be a few more videos in the next while.
(pumping
> > higher!)
> > I will keep u posted on that.
> >  The pump shown can pump to at least 7 m high.
> > Brian White

According to the videos and logic, the pulser pump is a looser. Why
not get a RAM pump. At least they work.

Burt

--- In pulserpump@yahoogroups.com, "Brian White <gaiatechnician@y...>"
<gaiatechnician@y...> wrote:
> Just a note that my brother sent 2 video clips of a small pulser pump
> back in Ireland. They are short ones without sound.
> They show the 6 inch pump stripped of its cowl and the water pulsing
> from one of its airlift pipes. There is a slight whirlpool in the
> foreground of one of the videos and that is the water going down the
> 6 inch pipe.
> Hopefully there will be a few more videos in the next while. (pumping
> higher!)
> I will keep u posted on that.
>  The pump shown can pump to at least 7 m high.
> Brian White

Just a note that my brother sent 2 video clips of a small pulser pump
back in Ireland. They are short ones without sound.
They show the 6 inch pump stripped of its cowl and the water pulsing
from one of its airlift pipes. There is a slight whirlpool in the
foreground of one of the videos and that is the water going down the
6 inch pipe.
Hopefully there will be a few more videos in the next while. (pumping
higher!)
I will keep u posted on that.
  The pump shown can pump to at least 7 m high.
Brian White

A new site has linked to the pulser pump site. It seems to be a
fairly big one and more importantly peopled by openminded folk.
http://www.i4at.org/lib2/hydrpump.htm is their details about ram
pumps. I found it excellent because it shows how different ram pumps
and pulser pumps are. Basically, ram pumps are efficient water pumps
which use relatively small quantitys of high grade water power topump
water higher efficiently. Pulser pumps on the other hand can use
LARGE quantitys of very low grade water power to pump water  (and do
other stuff too).  The Webpage compares the figures from several
models from one manefacturer. The LARGEST model takes a quantity of
impulse water comparable to the amount of impulse water in the
SMALLEST pulser pump. It shows a point that I have frequently made.
Pulser pumps and ram pumps are usually appropriate to quite different
niches in the water power world AND there are a lot of pulser niches
currently unexploited.
Other news and tidbits. There is a keen pulser model maker in finland.
I have tidied up the pulser pump website a little. Hopefully it is a
better more uncluttered experience now.
And (unconfirmed) Might be a pulser pump demonstration model going in
in a big alternative energy display centre next spring.
Might be some bamboo pulser tests too!
It is unconfirmed but something I look forward to!
Seasons greetings  (if I dont post again this year)
Brian
white

Geyser pump
  Masao Kondo has applied for a US patent for a new type of airlift
pump called a geyser pump. He has also made parts which could be used
to convert an airlift pump into one of his geyser pumps.Seems he uses
intermittent plug flow to get greater efficiency. (When an airlift
pump first starts, there is a long pulse of solid water (or 2 or 3)
before it settles into typical fizzy water flow). It seems that the
patent applies to that form of flow and a way of producing it all the
time as the pump works. The patent claims that this type of flow is
more efficient. You can see the patent at
http://www.malibuwater.com/GeyserPumpPatent.html
  I have been saying for years that plug flow is probably more
efficient and this commercial interest in a similar process validates
my results to some extent. By the way, I made geysers powered by the
pulser pump years ago (just as a possible entertainment use). They
used a chamber with a hole in it to deliver water slowly, so that
when the geyser released its pressure, there was a burst of water and
then spray (pretend steam) like in a real geyser. (I am not claiming
prior infringement of the patent ).
Just thought models of old faithful might be interesting.
In the past, I have also made the airlift section of the pulser pump
with a chamber partway up the pipe to the user. It had a kind of
syphon valve in it and worked a bit like a geyser  for the final 6 ft
lift to the user. (I did a lot of testing but for me the extra
efficiency wasnt worth the complication).
It is also worth noticing that changing the design of the air
separation chamber in a pulser pump can produce shorter or longer
pulses of water (the patented geyser effect?) I wish Masao Kondo well
with his enterprise but I hope it does not slow the adoption of
pulser pumps (which predate it by over a decade) and which first
appeared in magazines in 1989. I also hope that I have outlined
enough uses for it to prevent the patenting of specific parts and
evolutionary improvements to specific parts of the device. It would
be a real shame if patents prevented people from making pulser pumps
(or making them better).
Brian White

Hi, Brian.

I am thinking of building a pump, but it'll have to be a small demonstration
model at present since I don't live anywhere near a stream or other useable
source of water. I find the concept fascinating, though, so I'd really like
to do some small-scale tests to see what I can get it to do. It seems to me
like this idea would be a perfect fit for a lot of remote applications. I'm
co-moderator of a Yahoo group that dicusses do-it-yourself alternatives to
municipal services, and the folks on the list were pretty interested in the
web page describing the pump.

Dan


Brian White writes:
Hi, Daniel,
             I have seen figures in engineering
manuals about airlift pumps and I honestly feel that
they are not relevant. Industrial airlift pumps use
powerful air compressors and might have a depth of 200
feet or more and pumping to that height or less.
Plug flow does not occur in those big pumps and they
are powered by electrical or gasoline motors. It is a
totally different situation!
I have done some work with different pipe sizes and I
am afraid  that it is not exaustive enough  to do more
than offer guidelines to people. I am fairly sure
there are pumps out there at this stage but no
feedback.
When feedback comes, progress in nailing down the best
ratios will come quickly.
If you are thinking of making a pump, I can help with
deciding the best pipe sizes.
Brian White




  --------------------------
Dan Mahoney
dan@...

Hi, Daniel,
              I have seen figures in engineering
manuals about airlift pumps and I honestly feel that
they are not relevant. Industrial airlift pumps use
powerful air compressors and might have a depth of 200
feet or more and pumping to that height or less.
Plug flow does not occur in those big pumps and they
are powered by electrical or gasoline motors. It is a
totally different situation!
  I have done some work with different pipe sizes and I
am afraid  that it is not exaustive enough  to do more
than offer guidelines to people. I am fairly sure
there are pumps out there at this stage but no
feedback.
When feedback comes, progress in nailing down the best
ratios will come quickly.
If you are thinking of making a pump, I can help with
deciding the best pipe sizes.
Brian White

--- "Daniel C. Mahoney" <dan@...> wrote:
> This might be explained in a FAQ somewhere, but has
> anyone done any studies
> of optimum ratio of pipe diameter to lift height, or
> to depth, or ???
>
> I only stumbled across the site a few days ago, and
> I'm very intrigued by
> it's possibilities.
>
>  --------------------------
> Dan Mahoney
> dan@...
>
>


=====
http://members.tripod.com/~nxtwave/gaiatech/pulser/index.htm
Pulser pump, the simplest pump in the world! Please Send to anybody who does 3rd
world work or volunteering!
See
http://www.animatedsoftware.com/pumpglos/glpulser.htm
for an independant accessment of the pulser pump

__________________________________________________
Do You Yahoo!?
Yahoo! Finance - Get real-time stock quotes
http://finance.yahoo.com

This might be explained in a FAQ somewhere, but has anyone done any studies
of optimum ratio of pipe diameter to lift height, or to depth, or ???

I only stumbled across the site a few days ago, and I'm very intrigued by
it's possibilities.

  --------------------------
Dan Mahoney
dan@...

There is an airlift demonstration model (In apple quicktime format for
download in the files section in the pulser pump group
http://groups.yahoo.com/group/pulserpump/files/   It shows a model
airlift pump with about 3 ft of depth which pumps to 6 feet higher
through 3/4 inch pipes. Metric 90 cm deep pumping to 180 cm high
through 20mm pipes
The model is powered by my humble assistant Laurie with a large
bicycle pump. The slowness of plug flow up the model surprised me. (I
have not done airlift in see-through pipes of this size before).
A warm welcome to our new members.
Brian white

I made some short video clips of a pulser pump model. They are in .mov
format (apple quicktime) and you will find them in the files section
in the group home. They are big (up to 5 megabytes) so you probably
need a broadband connection. If you get a chance, please download,
take a look and comment on them. A fullsize demonstration of the
airlift process is on the way too.
Anyway, have a good day and take care
Brian white

Just a note to all that I replied by email to gomerag. (Just in case
you think I am sleeping :) . Hasn't been much in the way of news
lately, I'm afraid. I havn't heard back from Kenya yet either.
I have not made a formula. (Though there is a java applet on the
website where you can put in your numbers and you will get a figure
for your site). It is based on actual results but there are many ways
to make pulser pumps and the figures can be bettered.
Perhaps in future just email me directly gaiatechnician@...
with your questions.
Brian White
--- In pulserpump@y..., "gomarag" <gomarag@y...> wrote:
> hello mr. moderator
>
>
> i want to make a question, wich is the formula to calculate how
much
> water you can lift in the whole thing, in a determine haigh, and in
> ralacion how much water is necesary entring in the sistem.
> what i mean wich is the hidraulic formula of the sistem?
> i am really surprised for your sistem because dont need energy, but
> how much water are you wasting? perhaps not wasting, just no using.
>
> gustavo gomar
>
> argentina

hello mr. moderator


i want to make a question, wich is the formula to calculate how much
water you can lift in the whole thing, in a determine haigh, and in
ralacion how much water is necesary entring in the sistem.
what i mean wich is the hidraulic formula of the sistem?
i am really surprised for your sistem because dont need energy, but
how much water are you wasting? perhaps not wasting, just no using.

gustavo gomar

argentina

gustavo gomar <gomarag@...> escribió:
   MR. MODERATOR:
   gomarag <gomarag@...> escribió: hello, i am gustavo gomar, from
argentina, i have a land in patagonia
with a large border on the rio colorado river, actually it,s just an
empty land, there is no production, i am planing to settle there and
to make a farm based in appropiates technologies, your pump it,s very
intresting and i can remmember that it was used by my grandfathers in
their farm and i think that there is a model stil available in
argentina, i think it was use to elevate or lift the water up to a
tank for water supplay in the house. the water was taken at first
with a windmill from the earth.
i really was looking for a screw pump, i want to built it myself,
this pump allow to lift a lot of water in a short head? or high, and
could be moved by winds that are strongs in patagonia.
i am planning a lot of plans, but i am studying the materials
aveilable, bears, soft materials in general, and second hands
materials.
if you can help me, thanks.
your page is excellent.
perhaps in the future i will make a page like yours about screw pumps.
gustavo gomar
argentina.



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Cobertura especial de la Copa Mundial de la FIFA Corea-Japón 2002, sólo en
Yahoo! Deportes

[Non-text portions of this message have been removed]

MR. MODERATOR:
   gomarag <gomarag@...> escribió: hello, i am gustavo gomar, from
argentina, i have a land in patagonia
with a large border on the rio colorado river, actually it,s just an
empty land, there is no production, i am planing to settle there and
to make a farm based in appropiates technologies, your pump it,s very
intresting and i can remmember that it was used by my grandfathers in
their farm and i think that there is a model stil available in
argentina, i think it was use to elevate or lift the water up to a
tank for water supplay in the house. the water was taken at first
with a windmill from the earth.
i really was looking for a screw pump, i want to built it myself,
this pump allow to lift a lot of water in a short head? or high, and
could be moved by winds that are strongs in patagonia.
i am planning a lot of plans, but i am studying the materials
aveilable, bears, soft materials in general, and second hands
materials.
if you can help me, thanks.
your page is excellent.
perhaps in the future i will make a page like yours about screw pumps.
gustavo gomar
argentina.



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---------------------------------
Cobertura especial de la Copa Mundial de la FIFA Corea-Japón 2002, sólo en
Yahoo! Deportes

[Non-text portions of this message have been removed]

hello, i am gustavo gomar, from argentina, i have a land in patagonia
with a large border on the rio colorado river, actually it,s just an
empty land, there is no production, i am planing to settle there and
to make a farm based in appropiates technologies, your pump it,s very
intresting and i can remmember that it was used by my grandfathers in
their farm and i think that there is a model stil available in
argentina, i think it was use to elevate or lift the water up to a
tank for water supplay in the house. the water was taken at first
with a windmill from the earth.
i really was looking for a screw pump, i want to built it myself,
this pump allow to lift a lot of water in a short head? or high, and
could be moved by winds that are strongs in patagonia.
i am planning a lot of plans, but i am studying the materials
aveilable, bears, soft materials in general, and second hands
materials.
if you can help me, thanks.
your page is excellent.
perhaps in the future i will make a page like yours about screw pumps.
gustavo gomar
argentina.