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Gaggia-HowToBuild-Pressure-Tester-part2

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Uploaded by on Dec 14, 2008

Building a portafilter pressure gauge for measuring pump capabilities, setting the OPV or checking the OPV. All parts obtained from HomeDepot and most all part numbers shown in the video.

installing on the portafilter and the initial test

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Howto & Style

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Uploader Comments (DoRu42)

  • Did you figure out how to resolve the low flow problem?

  • @guitarboyled

    no, but I did see someone not even used the split flow portion and just set a closed portafilter pressure to 10 bars for 9 bars with flow. A valve with a finer adjustment would help but as seldom as it needs to be done, it's not that big a deal.

    Regarding your machine sputtering while hot but not when cold, I would first to a temp check using the stryrofoam cup in the grouphead trick. The cup sealed tight in the group head with a temp gauge diagonal seals in heat for accuracy.

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  • Thank you, nice idea.

    hmmm mayby I will give it a try

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