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  • there is a rubber ring/seal where my portfilter spout attaches (Sage Barista Express) it has degraded and causes some coffee to leak, my googlefu is struggling, has anyone replaced something similar or should I measure and order from some generic o-ring place (recommendations?).

  • Group head gasket? Relatively simple and common replacement. Avoid leaving the potafilter fully locked in when not in use to prevent unecessary wear.

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