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wega water pump
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Discussions > Espresso > Machines > wega water pump  
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florentvade
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Joined: 24 Apr 2008
Posts: 18
Location: nz
Expertise: I live coffee

Posted Sun Apr 29, 2012, 2:03pm
Subject: wega water pump
 

Hi,

I Have a wega EPU2, it is not plumbed in so the water comes from a container.  
It seems that since a few days, when the machine is at pressure, if I don't pour a shot every couple of minutes, the water doesn't stay in the pump but goes back to the water container.   The hose between the water container and the machine is then hot.
Also, if I don't pour a shot for that long, I need to put an external water pump to resend water in the system.

If anyone could help me with that problem, that would be most appreciated.

Thanks in Advance
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kitt2000
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kitt2000
Joined: 29 Apr 2007
Posts: 229
Location: nelson, new zealand
Expertise: I love coffee

Espresso: Lambro,
Grinder: Mazzer SJ
Roaster: Gene cafe
Posted Sun Apr 29, 2012, 7:26pm
Subject: Re: wega water pump
 

Hi Florent

What sort of set-up do you have? Most commercial machines with Rotary pumps are designed to be plumbed in to the mains.Whilst some rotary pumps will pull water from a tank, it is not ideal.At the least you  should have a 1 way valve in the line to stop your problem.If you keep running the rotary pump dry it will burn-out and they're not cheap to replace
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JonR10
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JonR10
Joined: 26 Apr 2004
Posts: 10,376
Location: Houston, Texas
Expertise: I love coffee

Espresso: E61 Legend, Livietta,...
Grinder: Robur, B-Vario-W
Vac Pot: Hario Tabletop, Yama...
Drip: Technivorm
Roaster: 1-lb US Roaster, Behmor 1600
Posted Sun Apr 29, 2012, 8:13pm
Subject: Re: wega water pump
 

I found that my Wega Lyra needed line pressure to work properly, so I got a FloJet feed pump and that solved my issue.  Once it was running on the Flojet then I also an accumulator so the flowjet cycles were less often and more stable.  

I've upgraded machines a few times since then, but I still run my setup using the same flojet-based water feed system.

 
Jon Rosenthal
Houston, TX
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florentvade
Senior Member


Joined: 24 Apr 2008
Posts: 18
Location: nz
Expertise: I live coffee

Posted Sun Apr 29, 2012, 8:21pm
Subject: Re: wega water pump
 

Hi Guys,

Thanks for the input.
I run a mobile coffee cart, so the machine is also gas fitted, and it's why it's not plumbed in.
The flow jet pump sound like a good idea.
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