The Cyber-Spy.Com Usenet Archive Feeds Directly
From The Open And Publicly Available Newsgroup
This Group And Thousands Of Others Are Available
On Most IS NNTP News Servers On Port 119.
Cyber-Spy.Com Is NOT Responsible For Any Topic,
Opinions Or Content Posted To This Or Any Other
Newsgroup. This Web Archive Of The Newsgroup And
Posts Are For Informational Purposes Only.
From: "Frank Bemelman"
References: <firstname.lastname@example.org> <email@example.com> <firstname.lastname@example.org> <email@example.com> <firstname.lastname@example.org>
Subject: Re: 12 vdc to 6vdc @ 30amps
Date: Sun, 15 Sep 2002 12:39:06 +0200
X-Newsreader: Microsoft Outlook Express 6.00.2600.0000
Organization: EuroNet Internet
NNTP-Posting-Date: 15 Sep 2002 10:39:16 GMT
"Tony Williams" schreef in bericht
> In article ,
> Kevin McMurtrie wrote:
> > In article <email@example.com>,
> > Tony Williams wrote:
> > > And I'm struggling with a pal's well water pump. It has
> > > pumped ok for 12 years, but we had to take it out in
> > > order to get a sealing washer replaced. But do you
> > > think we can make it pump again? We've been three days
> > > on it, filling and priming the damned thing, time after
> > > time..... it just will not pump, all it does is just sit
> > > there, churning water.
> > Well pumps don't need to be primed. The impeller is probably worn out
> > or the intake sleeve broke. (I assume anyone here would have checked
> > the motor capacitor. The pump won't do much if it spins the wrong way.)
> Yes, at some time in the exercise we took an
> inspection plate off and did check the direction
> of rotation.
> The mfr's data states that the pump (and the whole
> of the pipework) absolutely, definitely does need
> scrupulous priming.... no air in the inlet piping
> whatsoever. It is also water-lubricated and can
> never be allowed to pump air.
> The pump lifts water from 20ft down, and pushes it
> up another 30ft, to the reservoir. The only non-
> -return valve in the whole system is down at the
> bottom of the well-pipe. So basically the pump
> sits in a solid column of water, which it has to
> We've even primed the system by back-filling from
> the reservoir end.
> We took it out (again) this morning to take back
> to the people who refurb'd it, for them to test.
Are you really sure there is water down there?
(remove 'x' & .invalid when sending email)
Go Back To The Cyber-Spy.Com
Usenet Web Archive Index Of
The sci.electronics.design Newsgroup