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Howto: Backflushing and Descaling Nuova Simonelli Oscar
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Runes911
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Joined: 8 Oct 2012
Posts: 1
Location: Biloxi, MS (for now)
Expertise: Just starting

Posted Mon Mar 25, 2013, 11:55am
Subject: Howto: Backflushing and Descaling Nuova Simonelli Oscar
 

I have searched and searched for instructions/videos on how to backflush my Simonelli Oscar. I know it involves the blank disk, but the instructions for the machine does not tell how. Do I just put the blank puck in and run the machine for a few seconds? In one video I found the machine had a valve that released the water when they backflushed it. The Oscar does not have that, does it? Also, what is the best cleaner to use for backflushing?


Next: Descaling.

How is this done? The only video I could find was this one: http://www.youtube.com/watch?v=-eXlC-Eo1h0 , is that how it is done? Is there a different way to do it?
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Coffeenoobie
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Coffeenoobie
Joined: 11 Dec 2011
Posts: 3,023
Location: PNW
Expertise: I like coffee

Espresso: N S Oscar
Grinder: K30 & Vario W
Posted Mon Mar 25, 2013, 12:11pm
Subject: Re: Howto: Backflushing and Descaling Nuova Simonelli Oscar
 

Oscar has a 3 way valve so it can and should be Backflushed.  Just put the disk in and if you have some cleaner use it.  Then run the pump till it get quiet and stop for 10 seconds or so and do it again till the cleaner is gone or about 1 minute or 2.

The best way to descale is a tear down because scale can become dislodged and stop up the HX.  If you want to see how bad it is just take out your water probe and see how built up it is.  You can do the one shown in the video if you want but there are risks with that. (really there are risks with anything like working on your car often something else breaks)

 
Coffeenoobie

Buying advice: GRINDER GRINDER GRINDER. Don't cheap out on the grinder.

My coffee treasure map...
Click Here (maps.google.com)

Oscar trick out: http://s156.photobucket.com/user/GandBteam/story/14231
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Coffeenoobie
Senior Member
Coffeenoobie
Joined: 11 Dec 2011
Posts: 3,023
Location: PNW
Expertise: I like coffee

Espresso: N S Oscar
Grinder: K30 & Vario W
Posted Mon Mar 25, 2013, 12:21pm
Subject: Re: Howto: Backflushing and Descaling Nuova Simonelli Oscar
 

"Presenting the Ultimate Oscar Video"

 
Coffeenoobie

Buying advice: GRINDER GRINDER GRINDER. Don't cheap out on the grinder.

My coffee treasure map...
Click Here (maps.google.com)

Oscar trick out: http://s156.photobucket.com/user/GandBteam/story/14231
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Markarian
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Markarian
Joined: 27 Jun 2012
Posts: 656
Location: Seattle Area
Expertise: I love coffee

Espresso: ECM Technika IV Profi WT-WC
Grinder: Baratza Forte AP, HG One
Vac Pot: Bunn Trifecta MB
Drip: Moka, Aeropress, Hario V60
Roaster: Behmor 1600
Posted Mon Mar 25, 2013, 8:00pm
Subject: Re: Howto: Backflushing and Descaling Nuova Simonelli Oscar
 

Okay let me just throw in here that I had a big "How do I backflush??" moment when I first got the Oscar because I was going through the steps to do it and would only get a thin trickle of water out the drain hose (the right-hand side as you look at the front of the machine). Then, when trying to backflush again, the hose literally exploded. Turned out it had been pinched shut by an idiot with a ziptie before I got it. Just make sure you're getting water rushing out that hose when you release the button. Remove the drip tray, stick an old towel under the hose and watch while you backflush.
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