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Installing OPV & Vacuum Relief on a Plumbed Oscar
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SyracuseCoffee
Senior Member


Joined: 5 Mar 2014
Posts: 28
Location: Syracuse
Expertise: I like coffee

Espresso: NS Oscar
Grinder: Compak K3
Posted Wed Mar 5, 2014, 9:40am
Subject: Installing OPV & Vacuum Relief on a Plumbed Oscar
 

I've done a lot of reading and lurking on this site but information on plumbed Oscars is a little thin.  Plumbing to the machine itself is fairly straightforward with the usual shutoffs, pressure regulator, check valves, drain lines, etc.  Running the lines under/through the counter is probably going to be a pain.  My questions for a plumbed (direct connect) Oscar are....

  1.  Should the discharge of an OPV installed on the feed to the Oscar HX have to go to the drip tray or drain?  It seems to me that is required because re-directing the flow back to the pump inlet/tank (like is done for the pour-over Oscar) would affect the operation of the OPV and/or the pump since both the inlet to the pump and the discharge of the OPV would be subject to line pressure.  Maybe I'm wrong on this?

  2.  Is there any issue with installing a Vacuum Relief valve on a plumbed Oscar?  I am planning on installing the Musica vacuum relief valve so I can put the Oscar on a timer.

Any feedback would be appreciated.  Thanks.
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calblacksmith
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calblacksmith
Joined: 25 Nov 2007
Posts: 7,672
Location: Riverside, Ca, U.S.A.
Expertise: I live coffee

Espresso: ECM Vene. A1, La Cimbali M32
Grinder: Azkoyen Capriccio, Major
Vac Pot: 40s era Silex
Drip: Msl. Com. brewers
Roaster: gave it a try, decided no
Posted Wed Mar 5, 2014, 3:10pm
Subject: Re: Installing OPV & Vacuum Relief on a Plumbed Oscar
 

It sounds like you are making a DIY kit from scratch. The drip tray should be plumbed also, yes all discharge goes to the drip tray the to the drain.

Adding a vacuum breaker is easy, I did one and it was painless.

 
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Wayne P.
Anything I post is personal opinion and is only worth as much as anyone else's personal opinion. YMMV!

Feed the newbs, starve the trolls and above all enjoy what you drink!
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SyracuseCoffee
Senior Member


Joined: 5 Mar 2014
Posts: 28
Location: Syracuse
Expertise: I like coffee

Espresso: NS Oscar
Grinder: Compak K3
Posted Wed Mar 5, 2014, 4:18pm
Subject: Re: Installing OPV & Vacuum Relief on a Plumbed Oscar
 

Thanks.  

Water line will be a little tricky finagling the line through the counter to the sink, but the the waste line is going to be a real pain.
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