Results 1 to 3 of 3

Thread: Pressure gush at pump off (Silvia)

  1. #1
    Senior Member
    Join Date
    Nov 2005

    Pressure gush at pump off (Silvia)

    Gene Cafe Coffee Roaster $850 - Free Beans Free Freight
    Do other Silvia owners find your espresso pour sometimes finishes with a pressure-boosted gush at the moment the pump switch is flicked off? I think its when the 3-way solenoid (?) does its thing to depressurise the portafilter. Seems to be happening a bit these days. Its annoying because when I decide to cut the pour, I want it cut dead in its tracks. Instead I get a burst of gush first.

    All input welcome.

    - Rob

  2. #2
    Senior Member robusto's Avatar
    Join Date
    Feb 2005

    Re: Pressure gush at pump off (Silvia)

    Cant say Ive noticed that phenomenon. Ill keep a particular eye out for it, but Im fairly certain it doesnt happen with my SIlvia.

    The only thing that happens when the brew switch is turned off, of course, is the 3-way solenoid depressurising the portafilter. The noise of that happening is quite marked, but all the action is at the drip tray where the spent water and coffee is emptied into.

    Incidently, do you bleed the build up of steam pressure from the wand before pulling a shot? Maybe that will fix whatever is ailing.


  3. #3
    Senior Member
    Join Date
    Nov 2005

    Re: Pressure gush at pump off (Silvia)

    Behmor Brazen - $249 - Free Freight
    Yeah, Robusto. You might be spot on there. Ive been experimenting with hotter shots lately and I havent thought to bleed the steam wand.



Similar Threads

  1. EM6910 pump pressure
    By irishleemurray in forum Brewing Equipment - Midrange ($500-$1500)
    Replies: 12
    Last Post: 7th June 2013, 04:52 PM
  2. Should a vibration pump pressure be set higher than a rotary pump?
    By NakiChap in forum General Coffee Related...
    Replies: 12
    Last Post: 25th June 2012, 04:11 PM
  3. Silvia pump pressure adjustment
    By SamR in forum Brewing Equipment - Midrange ($500-$1500)
    Replies: 2
    Last Post: 15th March 2008, 12:25 AM
  4. pump pressure
    By SleeplessKnight in forum Brewing Equipment (non-machine specific)
    Replies: 4
    Last Post: 21st October 2006, 09:09 PM

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts