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Quickmill Anita pump keeps bouncing pressure
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okcomputer
Senior Member


Joined: 2 Feb 2010
Posts: 8
Location: atlanta
Expertise: I love coffee

Posted Sat Oct 5, 2013, 2:18pm
Subject: Quickmill Anita pump keeps bouncing pressure
 

Can you guys please have a look at the video and let me know what may be going on?  The pressure bounces with a puck of espresso in the portafilter, but seems to work ok with a blank portafilter (no holes).

Any thoughts?

Thanks!

http://www.youtube.com/watch?v=QsCuW_tOKXE
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okcomputer
Senior Member


Joined: 2 Feb 2010
Posts: 8
Location: atlanta
Expertise: I love coffee

Posted Sat Oct 5, 2013, 2:24pm
Subject: Re: Quickmill Anita pump keeps bouncing pressure
 

Actually, I take that back- with a blank portafilter, it seems to go up to 12 bar, and then drop down to about 7 bar, and just stay there.
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SStones
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SStones
Joined: 24 Nov 2012
Posts: 476
Location: Canada
Expertise: Professional

Espresso: Giga 5, ECM Giotto, Rocket...
Grinder: Anfim Milano-Best
Vac Pot: No  :(
Drip: Some $30 thing from Walmart
Roaster: I buy pre-roasted.
Posted Sun Oct 6, 2013, 4:14pm
Subject: Re: Quickmill Anita pump keeps bouncing pressure
 

If your pump is getting quiet as the pressure falls, then kicking back in then restalling  (Sorry, no speakers on this computer) then the pump is unable to maintain flow at more than 11 bars pressure.  The pump is getting weak and will get worse in time.  You could adjust your relief valve down to 10 or 10.5 Bar, continue using it and if it's making decent espresso enjoy it for several more months.  Buy a new pump and plan to change it soon...  If even with a relief set to 10.2 Bar it fails to provide a steady flow you have to replace it now...   NOW!!!
Or you will have yucky espresso tomorrow morning.  Eww.
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