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Now I've done it: Dry pump
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awagner08
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Joined: 8 Sep 2008
Posts: 11
Location: Cleveland
Expertise: I like coffee

Posted Tue Sep 16, 2008, 6:41am
Subject: Now I've done it: Dry pump
 

Don't know how it happened, but I have no excuses: (ok ok, world record evaporation rates, a sneaky room mate, something!).

But I've run the pump dry on my used and patched up Gaggia Espresso.  Any advice on how to get out of this jam?  I appreciate it.
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The_Shadow
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Joined: 18 Oct 2007
Posts: 504
Location: North Carolina
Expertise: Pro Barista

Espresso: NS Aurelia 2 group, 1977...
Grinder: NS MDX, NS Grinta, KyM...
Vac Pot: N/A
Drip: BUNN VPR/LPG Combo
Roaster: Leave That To The Pros
Posted Tue Sep 16, 2008, 7:41am
Subject: Re: Now I've done it: Dry pump
 

Well how long did it run dry? That's really the issue. If it was a matter of seconds it should be OK. I don't think vibratory pumps having moving parts that will wear out when dry (for short periods of time), but will certainly overheat because of it. I've done the same thing in my machine and was worried, but after filling the tank and priming the pump all was OK. Think about it.... when you first get your machine the pump runs dry for the first minute...... Just don't let it happen too often.
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awagner08
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Joined: 8 Sep 2008
Posts: 11
Location: Cleveland
Expertise: I like coffee

Posted Tue Sep 16, 2008, 11:47am
Subject: Re: Now I've done it: Dry pump
 

Thanks for the hope.

The answer is: "not very long".  But now, I can't seem to get a flow.  I did refill the tank, and I don't seem to be getting any flow when I turn the pump on. It's acting like it needs a jump start, like a suck on a siphon or something to get going again.  I'm not too sure what to do.
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CraigA
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CraigA
Joined: 19 Dec 2001
Posts: 11,176
Location: Rexdale, Toronto, Ontario, Canada.
Expertise: I live coffee

Espresso: PID/PressureMod 2001...
Grinder: BUNN FPG-2 DBC, Baratza...
Vac Pot: Bodum Santos manual, Yama 5...
Drip: Behmor BraZen, BUNN VPR-APS,...
Roaster: Refurb Behmor 1600, BBQ...
Posted Tue Sep 16, 2008, 11:57am
Subject: Re: Now I've done it: Dry pump
 

awagner08 Said:

It's acting like it needs a jump start, like a suck on a siphon or something to get going again.  I'm not too sure what to do.

Posted September 16, 2008 link

Hi Adam, & a belated Weclome to the Coffeegeek forums! {;-)
How old is this machine please? Sorry to hear you're having problems, but it may have an air lock/bubble that just won't clear out/through to get the water flowing.

I'd try taking the water input tube & hold it up higher than the pump itself, in a small container of water to see if that small gravity drop primes the pump & does the trick. If that doesn't work, I'd then try holding the tube higher than the pump again & blow into the tube to see if that gets the water to flow.

 
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awagner08
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Joined: 8 Sep 2008
Posts: 11
Location: Cleveland
Expertise: I like coffee

Posted Wed Sep 17, 2008, 5:28am
Subject: Re: Now I've done it: Dry pump
 

Thanks CraigA, that did it.  Phew!  I didn't want to damage my machine further, and your tips really helped give me the confidence to get this done.  Thanks a lot - you run a great place on the web here.
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TimEggers
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TimEggers
Joined: 3 Oct 2004
Posts: 2,945
Location: Tiskilwa, Illinois
Expertise: I love coffee

Espresso: QM Anita, Cappuccino Amore
Grinder: Baratza Vario, Mazzer SJ
Vac Pot: Antique McKee, Santos
Drip: Pour Over, Bodum Presses
Roaster: RK Drum
Posted Wed Sep 17, 2008, 6:09am
Subject: Re: Now I've done it: Dry pump
 

The vibe pumps that Gaggia uses are really a good quality pump and are quite rugged.  I doubt you damaged it at all with the limited abuse you gave it.  If you did destroy the pump they aren't too expensive, readily available and quite easy to replace.

 
Tim Eggers
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CraigA
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CraigA
Joined: 19 Dec 2001
Posts: 11,176
Location: Rexdale, Toronto, Ontario, Canada.
Expertise: I live coffee

Espresso: PID/PressureMod 2001...
Grinder: BUNN FPG-2 DBC, Baratza...
Vac Pot: Bodum Santos manual, Yama 5...
Drip: Behmor BraZen, BUNN VPR-APS,...
Roaster: Refurb Behmor 1600, BBQ...
Posted Wed Sep 17, 2008, 7:06am
Subject: Re: Now I've done it: Dry pump
 

awagner08 Said:

Thanks CraigA, that did it.  Phew!

Posted September 17, 2008 link

Glad it worked for you!

I didn't want to damage my machine further, and your tips really helped give me the confidence to get this done.

Which worked for you Adam, just holding the tube higher over the pump in a container of water, or holding the tube the same way & priming/filling it up with water &/or actually blowing into the tube with a bit of pressure to persuade the water to flow?

Thanks a lot - you run a great place on the web here.

Mark Prince is the site owner & operator of this great site here. There are several moderators, & I guess you could call us the guardians & caretakers of the place. {;-)

 
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