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sprinkler valve leaks

Post questions and info about pneumatic (compressed gas) powered cannons here. This includes discussion about valves, pipe types, compressors, alternate gas setups, and anything else relevant.
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Unread postAuthor: dewey-1 » Sun Apr 15, 2012 3:02 pm

Did you position the black lever so it is in the closed position?

Did you remove the white plastic filter from the diaphragm?
http://www.spudfiles.com/spud_wiki/inde ... dification


Make sure you have epoxy in the solenoid vent opening.
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Unread postAuthor: beastmode986 » Sun Apr 15, 2012 3:42 pm

im not sure what you mean by the white filter is there a pic you can show me
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Unread postAuthor: jsefcik » Sun Apr 15, 2012 3:47 pm

beastmode986 wrote:ok i officially dont know what it is i tried epoxy around the schrader valve and epoxy around the blow guns threads it still leaks i tightened everything also everything on the inside looks fine its this exact valve http://www.lowes.com/ProductDisplay?par ... &cId=PDIO1
is it possible to post pics from my phone directly?



you might wanna try me method,
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Unread postAuthor: beastmode986 » Sun Apr 15, 2012 5:30 pm

well the 1/4 in end is screwed into the valve but it worked fine lke that before so i cant screw in a schrader directly i also had the schrader screwed in the back
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Unread postAuthor: jsefcik » Mon Apr 16, 2012 2:38 pm

beastmode986 wrote:well the 1/4 in end is screwed into the valve but it worked fine lke that before so i cant screw in a schrader directly i also had the schrader screwed in the back



pics dude, they help alot
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Unread postAuthor: beastmode986 » Thu Apr 19, 2012 6:16 pm

ok im about to derail this thread but i didnt want to start a new one but is it illegal to make spud guns in the united states like high power pneumatics combustions and hybrids? just wanna make sure its ok
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Unread postAuthor: MrCrowley » Thu Apr 19, 2012 6:27 pm

SpudWiki ("Wiki" button located top of every page) > Important & Related Links > Legal issues

Google search > Spudgun legal > Wikipedia: Spud gun legality

Google search > Spudgun ATF > ATF: Q: How do I obtain a classification from ATF for my “potato gun?

I don't mean to be a dick by not linking the articles, I just think it would be a good idea if you became familiar with searching for easy-to-obtain information as well as becoming familiar with using the SpudWiki.
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Last edited by MrCrowley on Thu Apr 19, 2012 6:27 pm, edited 1 time in total.
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Unread postAuthor: Fnord » Thu Apr 19, 2012 6:27 pm

It would depend more on your state and local laws. Spudguns are legal under federal law, but the definition fails to specify many things regarding when a spudgun would fall into a fire-arm classification. In the end, the legal status of a very powerful hybrid or full-auto spudgun would likely be determined by how convincing you and your lawyer are in court.

With the state of U.S. law at the moment, it could easily go either way.
That's why you want to do any high-end shooting as far away from civilization as possible. It keeps everybody safe.

Also keep in mind it is illegal to shoot anything explosive/incendiary.
What state are you in?

(ninja'd by crowley, but law-related information is the one thing I will spoon-feed without hesitation).
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Unread postAuthor: beastmode986 » Thu Apr 19, 2012 6:59 pm

in illinois btw thanks
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Unread postAuthor: velocity3x » Thu Apr 19, 2012 10:37 pm

Fnord wrote:It would depend more on your state and local laws. Spudguns are legal under federal law, but the definition fails to specify many things regarding when a spudgun would fall into a fire-arm classification. In the end, the legal status of a very powerful hybrid or full-auto spudgun would likely be determined by how convincing you and your lawyer are in court.




http://www.atf.gov/firearms/guides/impo ... evice.html

ATF Definition of a Destructive Device:
"Any type of weapon by whatever name known which will, or which may readily be converted to expel a projectile, by the action of an explosive or other propellant, the barrel or barrels of which have a bore greater than one-half inch in diameter"


I built a simi-auto 32mm ball bearing cannon and contacted ATF for approval. They seemed highly annoyed and told me what I described was nothing more than an airsoft or BB gun. Eventually, I received a letter of approval with conditions : can't use it to commit a crime or shoot at a vehicle with passengers, blaw, blaw.. Approved for RECREATIONAL purposes.
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Unread postAuthor: beastmode986 » Tue Apr 24, 2012 3:25 pm

thanks now back to the sprinkler valve, i got a new one and drilled it and when i put the blowgun in and did everything it just relased small bursts of air out of the blow gun like 10 times. what could i have done wrong
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Unread postAuthor: dewey-1 » Tue Apr 24, 2012 4:12 pm

beastmode986 wrote:im not sure what you mean by the white filter is there a pic you can show me


Here is a picture showing the filter screen.
Removing this helps with faster piloting.

Where are the pictures we have requested?
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Unread postAuthor: beastmode986 » Tue Apr 24, 2012 8:28 pm

ok thanks, actually i bought a new sprinkler valve.
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