My video Equipment:

4K Camera: https://goo.gl/gfXPDe
Voiceover Mic: https://goo.gl/zCYhiy
Video lights: https://goo.gl/8n8LzE

fittings that I used in video.
a half-inch sleeve.
a 1 inch and a quarter tee piece
2 reducers of 1 inch and a quarter to half inch. one male male and the other female female.
a 1 inch and a quarter male male brass fitting
two enamel jars.
a seal.
a bicycle valve.
a cap 1 inch and a quarter female.
a 10 cm 1 inch and a quarter sleeve
a 5 or 6 cm spring.
isolate everything very well to avoid air leakage as always with Teflon tape.
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Donations:
PayPal https://goo.gl/GHa0Gq
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Stay Tuned on my FB   / rulof.maker.youtube  

in this video I'll explain with a tutorial how I built a system of pipes and hydraulic fittings.
in fact I built a pneumatic valve.
uses compressed air to activate everything.
infAtTI A piston that I built with two venice cans will move back opening the barrel.
the barrel was an old bicycle pump.
he uses small glass jars of some expired medicines.
the paint when it impacts the wall is flared sideways.
leaving a paintball-like paint stain on the wall.
never use this thing I count people or animals.
do not load too much air otherwise the bottible could break.