RE: RE: Controllable water valves

["i.bird@xxxxxxx" <Ian@xxxxxxx>]

This is indeed the mail. The 'I hate it' bit referred to watering by the
way.

Anyway..... The piccy on Yahoo shows 4 valves and the water feed on the
left. The hozelok stuff it a hit as wifey understands and can operate this.
The system now has 6 valves but is essentially the same. I have momentary
switches installed, one per valve, that activate the valve for 1 hour. This
way we can turn on the hose or irrigation circuits and not have to worry
about turning it off. This is achieved by programming in HV. I also only
allow one valve to be on at once because of the current draw through the
CAT5 cable. I think two or three were fine but not all of them, I don't
remember. Our irrigation is done in the early hours when the water pressure
is best and the sun asleep.

The relay board was built for these valves and has 6 small DIL relays on
it. It has been faultless. This lot must have been there for getting on for
a year now and the valves, wiring and switches are only covered by a
plastic flap but everything still worked last weekend when I tested it.

If peeps are interested in the relay board I can make some for you. I
intend to redesign it so that it is opto-isolated but for this job either
version should be just fine. Currently it uses 5 volts to trigger the relay
and the relay carries 12 volts for the valves. 

We are just about to start watering again as the ground is cracking up
already!! I have a flag in HV that turns watering on or off - essential for
the winter assuming you don't want a bog.

Our hose pipe can be run either direct from the tap or through a valve -
easy with the hozelok stuff hence good WAF. Sometimes we need that little
bit of extra pressure that no valve lets us have.

If anyone would like up to date pictures or a look at the schedule then
shout. Assuming you do where do you want them - mailed direct or on Yahoo
or other - please specify as they say.

If you want pictures you realise I will have to make a load of spiders
homeless, don't you ;-))

Ian B

Original Message:
-----------------
From:  steve.cooper@xxxxxxx
Date: Wed, 17 Apr 2002 10:14:51 +0100
To: ukha_d@xxxxxxx
Subject: RE: [ukha_d] Controllable water valves



Would this be the mail

"I have just turned on my irrigation system at home so I don't have to
do
the
watering - I hate it.

I have used 12 volt water valves from RS as they are 12 volt for safety
and
have a BSP thread which means I can mate them to other plumbing and
watering
kit. The RS number is 342-023 and they also do the mating copper bit
342-023. They cost 9.43 and about 1.45 respectively + VAT of course
(www.rswww.com).

I have 4 all lined up and connected to a single tap. I found that it is
best
to only turn on one at a time because of the water pressure. Mine are
linked
through to hoselock stuff so SWMBO can cope. I also plan to have manual
on/off switches on them working through HomeVision input ports.

To power them I have a 12 volt transformer and reed relays. I then use
the
relay outputs from HomeVision to trigger the relays. HV may be fine on
its
own but better safe than sorry.

They have only been operating for about two days but so far so good. I
have
even bought two more valves so I don't have to mix 'leaky hose'
watering
with the 'lots of little jets' variety. I found the pressure drop was
annoying. My garden is 100' long to give you an idea.

Ian

"

Like Mark my electronic skills aren't up to much either so if anyone
wants
to supply us both a little reed relay board with 4 relays, that would
be
great.  Or even a circuit board and list of parts would be a
start.

S.


                                                                                                                                  
                   
"Ian
B"                                                                                                       
                   
<Ian@Mollyolo       
To:    
<ukha_d@xxxxxxx>                                                         
                   
gy.com>             
cc:                                                                                      
                                        
Subject:     RE: [ukha_d] Controllable water
valves                                      
                   
16/04/02                                                                                                      
                   
23:42                                                                                                         
                   
Please                                                                                                        
                   
respond
to                                                                                                    
                   
ukha_d                                                                                                        
                                                                                                                                  
                                                                                                                                  



Can't remember the code at the moment but I use six from RS components.
They
take 12 volts and I switch them from HV via a homemade relay board and
Cat5.
Try looking back through the archives for irrigation etc. They are about
11
quid + vat. If you are interested I think I posted piccys on yahoo.
quick check and yes.....
http://groups.yahoo.com/group/ukha_d/files/Pictures/Irrigation%20Valves.jpg

These are the old ones and there are now 6 but laid out in the same
way.

Ian B

> -----Original Message-----
> From: Mark McCall [mailto:mark@xxxxxxx]
> Sent: 16 April 2002 22:27
> To: ukha_d@xxxxxxx
> Subject: Re: [ukha_d] Controllable water valves
>
>
> http://www.laser.com/?page=shop/flypage&product_id=71&category_id=&
>
> M.
>
> ----- Original Message -----
> From: "Alan Shields" <alan@xxxxxxx>
> To: <ukha_d@xxxxxxx>
> Sent: Tuesday, April 16, 2002 7:51 PM
> Subject: [ukha_d] Controllable water valves
>
>
> > Does anybody have any recommendations for water valves for use in
a
> > garden irrigation system.
> >
> > Ideally I'd like something I can either trigger from an X10
module or
> > via a low voltage input.
> >
> > Cheers
> > Alan Shields
> > alan@xxxxxxx
> >
> >
> >
> > For more information: http://www.automatedhome.co.uk
> > Post message: ukha_d@xxxxxxx
> > Subscribe:  ukha_d-subscribe@xxxxxxx
> > Unsubscribe:  ukha_d-unsubscribe@xxxxxxx
> > List owner:  ukha_d-owner@xxxxxxx
> >
> > Your use of Yahoo! Groups is subject to
http://docs.yahoo.com/info/terms/
>



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