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Parts:
1 In. Female Threaded Anti- Siphon Valve www.orbitonline.com/products/Valves/02/16/07/1827/
1" male to 1 1/2" or 2" female black pipe bushing
Threaded 1 1/2" or 2"  3' long black pipe
1 1/2" or 2" black pipe end cap
male schrader valve stem
18" long 1" black pipe
24v battery
24v buzzer
toggle switch
momentary switch
connector wire

tools:
Teflon tape
pipe wrench
5/8" drill bit and drill
glue (Preferably hot glue)
electrical tape
bike pump
pipe dope

Step 1: Asembling the Tank

The first part is the tank. your tank needs to be made of black pipe otherwise it will explode when you pump it.

1.first take the end cap and drill a 5/8 in. hole in it
2.attach the valve stem and tighten in place
3.screw the end cap to the 3' long 2" (or 1 1/2) pipe
4.use the 1" male to 1 1/2" or 2" female black pipe bushing to attach the anti-siphon valve to the 3' long 2" (or 1 1/2) pipe

Step 2: Wiring

here is how I did the wiring

Step 3: Barrel, Presure, and Ammo

Good setups:

1" barrel, 3/4" cork, 40 psi
3/4" barrel, paper ball, 50 psi
3/4" barrel, wet paper ball, 40 psi
2" barrel, snow, 40 psi
2" barrel with coupling, snow with tennis ball in coupling, 50 psi 
2" barrel, stun grenade, 20 PSI(www.instructables.com/id/stun-grenade/)

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