If you have the correct size tap for the nipple you should go ahead and tap the hole out.
Pvc air cannon sprinkler valve.
How to build an air cannon with a sprinkler valve.
At 60 psi this d.
This cannon is capable of shooting projectiles such as oranges or parts of a potato very far distances and at very high velocities.
This instructable will teach you how to build an air cannon that can be triggered with a switch.
Qev sprinkler valve air cannon pvc plug.
Instead i will mount the nipple and blow gun trigger to the plug itself.
It looks awesome and can kill a watermelon from.
Drill a half inch hole into the center of the plug.