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Brew Pressure Issues
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Discussions > Espresso > Q and A > Brew Pressure...  
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qualin
Senior Member
qualin
Joined: 30 Jun 2012
Posts: 646
Location: Calgary, AB
Expertise: I love coffee

Espresso: Izzo Alex Duetto 3
Grinder: Mazzer Mini Elect. Type A
Vac Pot: Looking to buy
Drip: Manual
Roaster: Considering?
Posted Tue Jun 4, 2013, 9:46pm
Subject: Re: Brew Pressure Issues
 

If you are experiencing what the frustrated guy in the video is experiencing, I would certainly say that it is an equipment problem.

It should never vary pressure like that when it is in the middle of doing a "tough" pull. (ie. A shot which is just choking the machine.)

If you noticed that this behavior is new and it wasn't doing it before, then I'd say that this is an indication that something has failed.

A very fine grind shouldn't matter.. You should be able to pull syrup if you want and the machine should just do it.

 
Garbage In, Garbage Out, for every step of the process. From Beans to grinder, grounds to machine, coffee to cup.
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Billyj66
Senior Member


Joined: 8 Aug 2011
Posts: 22
Location: Washington DC
Expertise: I live coffee

Posted Wed Jun 5, 2013, 9:43am
Subject: Re: Brew Pressure Issues
 

Ok, it seems that you guys are right that it is the equipment and thanks again for the input.  Today Andrew from WLL sent me an email then we spoke on the phone and he is sure that it is an OPV issue - most likely faulty/partially clogged OPV.  just ordered the necessary parts and will update after i have replaced it.  I definitely think Andrew was taking more interest in the issue.

sorry for bouncing back and forth on causes but i think you guys and now WLL have me pointed in the right direction.

stay tuned for update.
thanks,
billy
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Billyj66
Senior Member


Joined: 8 Aug 2011
Posts: 22
Location: Washington DC
Expertise: I live coffee

Posted Mon Jun 17, 2013, 10:10am
Subject: Re: Brew Pressure Issues
 

heres my update.  this weekend i finally decided to open up the machine, remove the old opv and install the new one.  after a lengthy discussion with the WLL guy and reading the instructions on the operation i decided i could do it.  what a disaster.  no can do.  also, couldnt put it back together.  so tonight i am taking it UPS and having the pros do it - which is precisely what i should have done to begin with.

Once that gets taken care of i will have to decide if i really want to continue with this obsession.  tough to let go but i could just go out for a really great coffee/espresso.  the guys at Peregrine here in Washington DC are top notch.

After WLL confirms that it is all 100 percent - i may just sell the thing.

I guess if someone is real handy and was willing to reattach the hoses and replace the opv with the new one that i already have you could get a sick deal now but i feel better about spending the money to ship and repair knowing it was 100% perfect.  I'm just saying if someone was willing to take the risk and was confident in their skills i'd let it go on the cheap.

thanks again,

billy
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MatP
Senior Member


Joined: 1 Mar 2013
Posts: 42
Location: Southern California
Expertise: I like coffee

Espresso: Gaggia Classic
Grinder: Macap MXP
Roaster: Behmor 1600
Posted Mon Jun 17, 2013, 10:12am
Subject: Re: Brew Pressure Issues
 

Can't you find someone to do this locally for you? If you already have the parts, sounds like it would be cheaper than shipping the machine.

MatP
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