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Found a way to clear a clogged riser tube in our sand mold system by using a short burst of compressed air at 90 psi instead of trying to rod it out.

Saved our crew almost an hour of downtime yesterday when a critical mold was backing up, and now I'm curious if anyone has a different pressure sweet spot for their own systems?
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3 Comments
anthony_wood36
Nice! We had a similar clog last month but used a water jet at like 60 psi. Worked but made a huge mess lol.
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kevin_lane
kevin_lane28d ago
Wait, is an hour of downtime really that big of a deal? I mean, stuff clogs up all the time in these systems. It sounds like you just got lucky with the air pressure working fast. What happens if that burst just packs the sand in tighter and you make the problem worse? Then you're looking at way more than an hour to fix it.
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the_ray
the_ray28d ago
Forget the hour, you could pack it solid like @anthony_wood36's water jet mess but worse.
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