Re: Automatic watering

["Rob Lamb" <rjl@xxxxxxx>]

The valve is actually part of a larger plastic moulding that has the
tap connector as an integral part so you can't attach it the wrong
way round.

Rob

--- In ukha_d@xxxxxxx, "Malcolm Lansell" <mlansell@f...>
wrote:
> Do you have the valve the right way round?  It may be closed by
the water
> pressure (but obviously only if the water is flowing the right way)
>
> Mal
>
>
>
> ----- Original Message -----
> From: "Rob Lamb" <rjl@s...>
> To: <ukha_d@xxxxxxx>
> Sent: Wednesday, December 03, 2003 3:49 PM
> Subject: [ukha_d] Re: Automatic watering
>
>
> > Tried that but to no avail. Can't think of what to do next!
> >
> > Rob
> >
> > --- In ukha_d@xxxxxxx, "Tim Fletcher"
<timfletcher@b...>
> > wrote:
> > > reverse the polarity to close the valve?
> > >
> > >   ----- Original Message -----
> > >   From: Rob Lamb
> > >   To: ukha_d@xxxxxxx
> > >   Sent: Wednesday, December 03, 2003 11:48 AM
> > >   Subject: [ukha_d] Automatic watering
> > >
> > >
> > >   I need a little help with a new project. Up until now I've
used
> > a
> > >   standalone Gardena water computer to control my irrigation
> > system
> > >   but as this now seems to have failed and I now also have
> > Homevision
> > >   I thought I try to control the valve part of the water
computer.
> > >   Taking the water computer apart there are just a pair of
wires
> > that
> > >   lead to what looks like an electromagnet on the valve.
Connect
> > 9V DC
> > >   to these leads (that's the same as the battery the
computer
> > used)
> > >   and hey presto water flows through the valve. But here's
the
> > >   problem. Disconnect the power and - the water still flows!
Any
> > ideas
> > >   on what I'm doing wrong or what to do next?
> > >
> > >   Regards,
> > >
> > >   Rob
> > >
> > >
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