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Sprinkler Valve Question

Posted: Sat Jun 14, 2008 6:30 pm
by n-strike
If I got this sprinkler valve, where would I put the blow gun?
Image

Posted: Sat Jun 14, 2008 6:35 pm
by SpudUke5
Well first of all, you need to start searching more because you have posted 2 topics that can be easily answered.

It would go right were that big black thing that has the cross on top, take that off, put the blowgun in.

Posted: Sat Jun 14, 2008 6:36 pm
by n-strike
Okay. Sorry for not searching. I'll do that next time I post a topic.

Posted: Sat Jun 14, 2008 6:36 pm
by TurboSuper
http://www.spudfiles.com/forums/viewtopic.php?t=305

Please search for answers to topics such as this from now on; this gets asked quite often.

Happy building :D

Edit: Looks like you already got your chastising.

Posted: Sat Jun 14, 2008 6:39 pm
by n-strike
I know, but this one was a little different, because there looked like there were two places where you could put it. Sorry again.

Posted: Sat Jun 14, 2008 9:28 pm
by pizlo
No prob dude. What sprinkler is that?

Posted: Sat Jun 14, 2008 10:47 pm
by n-strike
It's this: http://www.homedepot.ca/webapp/wcs/stor ... PartNumber

On other websites like Orbit or Rainbird, they said something about anti-siphon...I'm not quite sure what is means...this sprinkler valve seems useful for an over under so you don't have to buy two elbows...

Posted: Sat Jun 14, 2008 10:58 pm
by TheTrooper
With the sprinkler angled like that, wouldn't it cause a lot of air constriction or are the insides open like a pipe, except for the diaphragm part of course.

Posted: Sun Jun 15, 2008 12:02 am
by D_Hall
n-strike wrote:It's this: http://www.homedepot.ca/webapp/wcs/stor ... PartNumber

On other websites like Orbit or Rainbird, they said something about anti-siphon...I'm not quite sure what is means...this sprinkler valve seems useful for an over under so you don't have to buy two elbows...
Anti-siphon valves have a small flapper valve that lets air in to the downstream side of the valve if it's not under pressure. This prevents back flow due to siphon effects in sprinkler systems.

It also makes the valves very bad choices for spud gunning as a fair amount of air will leak out of the anti-siphon valve before it seals.

Posted: Sun Jun 15, 2008 12:03 am
by n-strike
So are you saying I shouldn't use it?

Posted: Sun Jun 15, 2008 12:09 am
by D_Hall
n-strike wrote:So are you saying I shouldn't use it?
I'm saying performance will be crap compared to a normal (NOT an anti-siphon) sprinkler valve. It won't be unsafe or anything, it'll just suck ass.

Posted: Sun Jun 15, 2008 12:09 am
by n-strike
Okay. I'll try it...

Posted: Sun Jun 15, 2008 12:29 am
by TheTrooper
Now thats what i was kinda saying before except that air leaks instead of being constricted.

Posted: Sun Jun 15, 2008 12:29 am
by n-strike
Okay, thanks Trooper.