Any casters out there? Need help.

Any casters out there? Need help.
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Custom WorkstationHey folks. I decided to take up casting for my figures since my Target and Walmart never has any Legends or DCU figure. I got an air compressor off ebay that has a 100 psi max, with 2 hb. I also got a pressure pot with an 85 psi max.
The only problem is I can't get the pressure pot to pressurize!
The pressure gauge on the pot doesn't move and when I shut off the compressor I can hear a hissing coming from the pressure pot. Any ideas?? Any help would be awesome, I'm just afraid that I got ripped off on the pressure pot. Faulty O ring maybe? If it was just a bad O ring wouldn't the gauge still go up? Please help!

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User Comments
Thor on eBay
Its entirely possible though, that you don't have a leak but just a broken gauge. The hiss you hear from the pressure pot after the compressor is off might be a release valve depressurizing the pot for safety reasons.