Sprinkler valve help

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Potato Demon
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Sun Nov 18, 2018 5:54 pm

Hi, I recently purchased an Orbit model 57461 sprinkler valve and I modded it with a blowgun. In the tutorial I was following (same model and everything) I noticed something different about my valve despite the models being the same; on the output side on the valve in the tutorial above the small rectangular hole there was a tube or something but on mine there isn’t. The tutorial said to plug that hole with epoxy and that applying suction to the small tube on top of the valve helps.

When I apply suction to the tube the air is being pulled (I think) from a small hole you can see when looking through the rectangular hole on the output side (the side circled in red). Should I plug the smallest hole (the one that I circled) with hot glue and do a test fire when my cannon (it’s my second pneumatic) is finished?

To help with clarification I took some photos. I made the hole show up by shining my phone light through the small tube in the top of the valve. In all the photos except the one of the tube the top of the valve is facing up. Oh and here’s the link to the tutorial: http://www.thehalls-in-bfe.com/GGDT/lib ... 1_mod.html
Attachments
The hole illuminated with my phone light
The hole illuminated with my phone light
The tube on top of the valve
The tube on top of the valve
The hole, I circled where I think it is with blue
The hole, I circled where I think it is with blue
The modified valve
The modified valve
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Cthulhu
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Sun Nov 18, 2018 7:40 pm

I used this exact valve model on my sprinkler valve mortar, I flooded that entire square hole with epoxy to seal it and works very nicely.
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Potato Demon
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Sun Nov 18, 2018 11:53 pm

Ok, thanks!
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Potato Demon
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Mon Nov 19, 2018 6:31 pm

There is an air leak but I believe I can fix it. It is a high pitched noise.
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