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Sprinkler Modification

A place to ask general spud cannon related questions.
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Sprinkler Modification

Unread postAuthor: Acdcmonkey1991 » Sat Mar 31, 2007 2:58 pm

I'm a noob so don't poke fun at this question. What type of sprinkler valve should I get and how can I modify for use without electronics. is this possible to replace a ball valve?? If not, I need some ideas to replace a ball valve but keep THIS CANNON simple. the main problem is that the 1/4 ball valve I have on there right now is restricting the air flow. i need a system that quickly releases air.
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This is the cannon that I need to replace the ball valve on.
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Unread postAuthor: benstern » Sat Mar 31, 2007 3:05 pm

Any normal inline sprinkler valve should be ok. People usually go by ones made by Orbit, Hunter, or Rainbird.
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Unread postAuthor: pyromaniac » Sat Mar 31, 2007 3:25 pm

Orbit water master 3/4 or 1 inch is what i used.
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Unread postAuthor: jrrdw » Sat Mar 31, 2007 4:34 pm

I got mine already modded from http://www.bcarms.com i think it's a Watermaster, 1" for sure. Works very well, worth the money, totaly.
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Unread postAuthor: Acdcmonkey1991 » Sat Mar 31, 2007 7:04 pm

So to use the one from BC arms, i dont need to put in a piston? it can directly replace a ball valve?
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Unread postAuthor: hi » Sat Mar 31, 2007 7:09 pm

yes, you will need to go from the 1/4 inch fitting you have to 1'' for the valve though.

edit, no you dont need a piston, it uses a diaphram and that had already been done for you, all you need to do is screw it in.
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Unread postAuthor: Acdcmonkey1991 » Sat Mar 31, 2007 7:16 pm

Alright thanks i'm sure the valve will definatly inrease the guns power.
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Unread postAuthor: integral » Sat Mar 31, 2007 7:20 pm

if u cant get ur hands on a premodded valve, just go buy one and mod it urself. its extremely easy: http://www.spudfiles.com/forums/viewtopic.php?t=305&

the parts will cost around the same anyway. minus postage.
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Unread postAuthor: subterranean » Sat Mar 31, 2007 7:27 pm

Im not sure your aware of this, but theres alot of dead space on that cannon. If i where you i would remove the ball valve and then direct attach the rest of the gun to the chamber. Then i would cut the barrel close to where the "stock" begins and put the sprinkler valve there.
If all of that is too much for you then just replace the ball valve with what everyone has suggested.
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Unread postAuthor: Acdcmonkey1991 » Sat Mar 31, 2007 7:41 pm

Alright thanks, I think I'm going to mod my own sprinkler valve and use subterranean's idea.
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Unread postAuthor: Acdcmonkey1991 » Sat Mar 31, 2007 7:56 pm

So basically I just thread my release valve in the top of a sprinkler valve??
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Unread postAuthor: subterranean » Sat Mar 31, 2007 8:01 pm

basically yes using either a blow gun or ball valve. remember to remove the solinoid and seal it with epoxy or JB weld.
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Unread postAuthor: Acdcmonkey1991 » Sat Mar 31, 2007 8:05 pm

Alright thanks for the info.
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Unread postAuthor: integral » Sat Mar 31, 2007 11:12 pm

depending on what sprinkler u buy, there might/might not be a guide rod for the diaphragm. either way. if u dont have a guide rod, just drill straight in the middle. if u do have a guide rod, just offest the hole away from the rod.
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Unread postAuthor: Acdcmonkey1991 » Sat Mar 31, 2007 11:15 pm

Alright, thanks
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