On Tue, 05 Jul 2005 22:36:31 GMT, "PC Paul" wrote:

"raden" wrote in message
...
In message , PC Paul
writes

"raden" wrote in message
...
In message , Roger Hayter
writes
Title says it all. I am looking for a submersible water pump, a few
litres an hour would do, driven by propeller/turbine working off the
flow
in the stream to pump water up a few feet. Or of course any relevant
components of this idea would be useful. Many thanks for your thoughts.
Water wheel, unless on a raft, is no use as water lever varies about
5000%
of minimum 100mm or so.

Sir might want to look at this old, but effective concept

http://journeytoforever.org/at_waterpump.html


Sir may also like to get some ear defenders if he uses one...

But if it's submerged in a stream at the bottom of the garden, who cares ?

True, just that a perpetual water-torturey tap-tap-tap-tap is not the sort
of thing you want to find out about *after* installing it...

True. Although these things are quite small, the noise they make is
quite noticeable, if satisfying (that it's still pumping!). The
nomally quite large air vessel acts as a good loudspeaker.

We have one of these ram pumps operating in a water museum with which
I'm involved. The pump must be many decades old, and the rubber
diaphragms needed replacement. Although we could've used almost any
old insertion rubber to fabricate new diaphragms, I tried to contact
the original makers, and had no problem whatsoever in getting original
replacements, which promptly arrived in a linen bag, which had a label
attached with a space for the name of the railway station to which the
spares should be delivered!

I can't remember the manufacturer at the moment; I fancy he was in
Gloucestershire, but can you imagine getting this sort of service from
a modern pump-maker in, say 50 years time?

--
Frank Erskine
Sunderland