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Sprinkler Valve Trouble

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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Sprinkler Valve Trouble

Unread postAuthor: ThumbzUpTheoden » Thu Sep 25, 2008 9:42 pm

I've read the entire topic on sprinkler valve troubleshooting and still my modded valve leaks all the air out of the blowgun. Any other ideas would be much appreciated because I am using a 1" ball valve in the mean time and it isn't phenomenal. :?
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Unread postAuthor: McThunderThighs » Thu Sep 25, 2008 10:15 pm

If I got you right, its the blowgun and not the diaphragm valve that leaks.

If that is the case, I would just go guy a new blowgun, as it appears to be your problem. If you don't want to, try injecting it with some silicone grease and see if that helps. (Don't use regular grease, it will melt any rubber or plastic parts that might help the gunseal).
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Unread postAuthor: blind909 » Thu Sep 25, 2008 10:45 pm

If You have it on right, you should have it like the ones below. It needs to be screwed into the 1/4 inch NPT side of th blowgun, not the 1/8 inch side FYI.
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Unread postAuthor: cannon monkey » Fri Sep 26, 2008 9:28 am

not 100% sure if this is safe or not i asking the smarts people on this site...let them tell u if it safe before you try it but when i had a leak in my first cannon i dip the whole thing under water in my pool i not sure how safe that is with a sprinkler valve cuz i had a ball valve at the time of me doing so

if any one says it safe to hold the whole thing under fill it up and try it
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Unread postAuthor: Hotwired » Fri Sep 26, 2008 10:49 am

Eh that's safe enough. But that only shows where the leak is and Thumbz has already said it's leaking from the blowgun.
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Unread postAuthor: cannon monkey » Fri Sep 26, 2008 10:58 am

o lol ok sry guys new blow gun then
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Unread postAuthor: ThumbzUpTheoden » Sat Sep 27, 2008 1:57 pm

I fixed it. It was because the equalization hole was way to big. Now my cannon works like a charm. Powerfull as hell
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