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HELP: Rocket Giotto Premium... possible pump issues?

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  • HELP: Rocket Giotto Premium... possible pump issues?

    Hi guys,

    Last weekend when I had guests over, I had made a 6 cups of some pretty awesome tasting espresso!

    Unfortunately in the rush of things (and after heading back out to the backyard) I left the handle in 'half' position (pre-load?). Now to my knowledge it remained like that for a considerable amount of time (4-6 hours) - long story... but essentially we went to the local park and I hadn't noticed.

    Anyway, since the every time I start brewing coffee (pulling the handle up full) it takes a 15-20 sec before water starts coming out. It also seems that when I am actually brewing, the pressure build up also takes a little longer!

    I'm sure that something is wrong.. or different. Just not sure what I've done...

    Anyone could shed some light? Could this be a costly mistake?

  • #2
    Nope- Impossible to do any damage. More likely a change of grind due to different coffee or environmental conditions.

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    • #3
      Thanks, that's pleasing to know!

      But the symptoms still persist? - When I start the pump... it takes 5-10 sec before water even starts coming out... It used to do it immediately?

      And this only started happening after this incident.. Not sure what's going on.

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      • #4
        just wondering... do you mean it takes 5-10 secs for the water to come out with or without the PF loaded with coffee grinds? did it use to come out immediately with coffee grind loaded as soon as you turn the lever up?
        reason I ask is normally mine would take a few seconds for it to build up pressure (you can hear from a loud pump to a lower hum) before the espresso starts to drip out... if it gush out straight away, then my grind is too course.

        have you tried to back flush your group head (with or without chemical)?

        How does the coffee taste?

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        • #5
          Originally posted by iCoffee View Post
          Thanks, that's pleasing to know!

          But the symptoms still persist? - When I start the pump... it takes 5-10 sec before water even starts coming out... It used to do it immediately?

          And this only started happening after this incident.. Not sure what's going on.
          5 - 10 seconds is normal, That's the pre-infusion stage of espresso extraction. Water coming out immediately is usually a sign of poorly distributed coffee or a fractured puck.

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          • #6
            iCoffee, when you say you left the 'handle' in the half-position, I presume you don't actually mean the portafilter handle......you're talking about the lever or whatever that turns the pump on right?

            When you say it takes 5-10 secs for the water to come out......is that with a full portafilter attached, or is this actually how long it takes to produce water from the group?

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            • #7
              Guys, sorry I was not more explicit.

              1. 5-10 sec for water to come out of the group head w/o portafilter - Straight after the incident it wouldn't pump water for 10-15 sec.
              2. half position of the lever (to activate pump)
              3. Backflushed with and without checmical on weekend. Seems to be the same. It can't all be in my head could it?

              lol

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              • #8
                so you're saying you don't have any issues anymore?

                One thing that I can suggest though, is that when you wait for something, it seems to always take longer. If you feared you broke something, everything would seem longer ;-)

                You said;

                > 5-10 sec for water to come out of the group head w/o portafilter - Straight after the incident it wouldn't pump water for 10-15 sec.

                in both instances, you say 10 seconds (5-10 and 10-15) - maybe you need to time it.

                EDIT: your OP said 15-20 sec.

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                • #9
                  nah still the same, I'm actually really confused as to what's going on. Its almost like the pump would turn on in a delayed fashion, from that to the water coming through the group head (without Portafilter) or when you can hear the pressure build up (with portafilter). It's definitely 5-10 sec.

                  Will get chris to have a look at it closer to the end of the year (when i have some free time).

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                  • #10
                    Is your water hard or soft? Could you have a build up of scale from steaming out the group?

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                    • #11
                      hmm... pretty sure it's soft water... I only use filtered water through my brita filter... It's still the same... scenario is as follow:

                      1. Turn on and let it heat up for 45 min.
                      2. Pull the lever to full position - (without portafilter just to run the water for a little)
                      3. Hear the pump turn 'on' but no water for 5-10 sec. Note: there seems to be a lot of steam build up though. Lets out a hiss like it's pressurized lol.
                      4. 5-10 later water will come out of the group head.
                      5. The same is with a portafilter in place - There's almost 3 distinct stages of noise. 1. Pump on (no water) 2. Pump on (water) 3. Pressure built.
                      In normal circumstances I never really hear a distinction between 1. and 2.

                      It's still brewing so it's more so an annoyance (also phycological thing).

                      Thanks all for your help!

                      Cheers,
                      Ron

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