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Thread: Giotto P+ group seal dropping out and correct dosing.

  1. #1
    Senior Member
    Join Date
    May 2011
    Posts
    111

    Giotto P+ group seal dropping out and correct dosing.

    Gene Cafe Coffee Roaster $850 - Free Beans Free Freight
    Hi,

    have noticed in my GPP that the group seal is occasionally dropping out if I dont have the portafilter in.

    Does the rubber on these shrink or could it be another issue besides shrinkage/wear?

    Machine seems to be working properly otherwise...

    As an aside... do owners of this machine feel a small overdose works best for a double basket?

    Im leveling off and tamping to 12 pounds and it seems to be a bit muddy on top of the puck yet there is a mark from the showerscreen.

    Puck seems quite solid and I notice regularly that there is some channeling at the handle of the portafilter (always in the same spot though I have adjusted my filling with grinds to see if that was a cause).

  2. #2
    Member
    Join Date
    Mar 2012
    Posts
    42

    Re: Giotto P+ group seal dropping out and correct dosing.

    I thought it was 16 grams for double?

  3. #3
    Senior Member
    Join Date
    May 2011
    Posts
    111

    Re: Giotto P+ group seal dropping out and correct dosing.

    not sure :). I dont weigh my shots.

    Im more interested in what may be up with the group seal to be honest...

  4. #4
    Junior Member
    Join Date
    Sep 2011
    Location
    Robina
    Posts
    21

    Re: Giotto P+ group seal dropping out and correct dosing.

    A new seal is about $5.00 I would try that first.

    You are putting the seal in with the curved side uppermost arent you.

  5. #5
    Senior Member
    Join Date
    May 2011
    Posts
    111

    Re: Giotto P+ group seal dropping out and correct dosing.

    the seal comes out with the showerscreen. I have not tried to separate them...
    yes it is in the correct way :).

    Ill source a spare and go from there



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