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Old 04-06-2016, 01:37 PM
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David Pozzi David Pozzi is offline
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I'm using a cheap siphon sand blast gun in mine. I have 170 psi shop air available but I found the media flow is reduced at that pressure. The pressure backs up in the gun. I use a regulator to around 90 psi and get a better media flow.
Drilling out the air jet can cause so much air to flow, you don't get as much suction on the media hose. I put a vacuum gauge on mine to set pressure.
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