Our Valued Sponsor
OpinionsConsumer ReviewsGuides and How TosCoffeeGeek ReviewsResourcesForums
Espresso: Espresso Machines
NS Oscar..Microfoam..Group head temperature..
Rancilio Silvia - How to
Step by step guide for easy brewing and steaming with the Rancilio Silvia
www.seattlecoffeegear.com
 
Not Logged in: Log In to Postlog in
New Topics updated topics   New Posts new posts   Unanswered Posts new unanswered  
Search Discussion Board search   Discussion Board FAQ faq   Signup sign up  
Discussions > Espresso > Machines > NS...  
view previous topic | view next topic | view all topics
showing page 6 of 7 first page | last page previous page | next page
Author Messages
Coffeenoobie
Senior Member
Coffeenoobie
Joined: 11 Dec 2011
Posts: 3,031
Location: PNW
Expertise: I like coffee

Espresso: N S Oscar
Grinder: K30 & Vario W
Posted Sat Jan 12, 2013, 12:33pm
Subject: Re: NS Oscar..Microfoam..Group head temperature..
 

After you use and learn Oscar, all entry level single boilers will seem slow and weak.

 
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
back to top
 View Profile Visit website Link to this post
Markarian
Senior Member
Markarian
Joined: 27 Jun 2012
Posts: 658
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 Sat Jan 12, 2013, 1:45pm
Subject: Re: NS Oscar..Microfoam..Group head temperature..
 

Rancilio needs to put that damn model out to pasture. I know there's a LOT of Silvia owners out there and I don't want to hurt their feelings or act like a smug jerk, sitting on my HX high horse, but those machines are so hard to use and so limited for the price that they put a lot of beginners off of espresso who never come back. I started on a couple little Saecos and went to the used Oscar. The Saecos were something in the range of $60-80 used and gave me decent espresso until I could afford an upgrade. If Silvia was priced near the Gaggias, I wouldn't have such a low opinion of it. Ranting aside, this is what I use on my Oscar and I like it:

Click Here (www.seattlecoffeegear.com)

We used vice grips and electrical tape to take them on and off. At first, we used plumber's tape to create a seal, but it eventually went on without any tape and works fine.
back to top
 View Profile Link to this post
ethom
Senior Member


Joined: 24 Nov 2012
Posts: 65
Location: Pittsburgh
Expertise: I like coffee

Espresso: NS Oscar, Silvia broken :o(
Grinder: Vario
Drip: Bosch
Posted Sun Jan 13, 2013, 7:55pm
Subject: Re: NS Oscar..Microfoam..Group head temperature..
 

I ordered the Neplax valve, a PF gasket, and an inexpensive "toy" that I'm sure I don't need (Espresso Parts HQ 14 Gram Double Portafilter Basket) all from espresso parts.com. Thanks for the tips!

Speaking of tips, I'll try to work with the four hole a bit longer. Plugging a couple of the holes changed the characteristics but I'm still too new to know whether it was better or worse and I removed them.

Oh, the replacement Vario is on the highway :o)   Baratza customer service was terrific as you all have said.
back to top
 View Profile Link to this post
Coffeenoobie
Senior Member
Coffeenoobie
Joined: 11 Dec 2011
Posts: 3,031
Location: PNW
Expertise: I like coffee

Espresso: N S Oscar
Grinder: K30 & Vario W
Posted Tue Jan 15, 2013, 10:54am
Subject: Re: NS Oscar..Microfoam..Group head temperature..
 

Let us know how it goes.

 
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
back to top
 View Profile Visit website Link to this post
ethom
Senior Member


Joined: 24 Nov 2012
Posts: 65
Location: Pittsburgh
Expertise: I like coffee

Espresso: NS Oscar, Silvia broken :o(
Grinder: Vario
Drip: Bosch
Posted Thu Jan 17, 2013, 8:06pm
Subject: Re: NS Oscar..Microfoam..Group head temperature..
 

The Neplax valve and gasket arrived with very quick service from EspressoParts.com (good source!), but I didn't have the nerve to tackle the valve replacement tonight, especially with Markarianís experience of having stripped threads in the process.  Baratzaís new Vario should arrive tomorrow and I couldnít bear risking having a second broken pumper and a brand new grinder with nothing to do.

Instead, I tried draining the boiler again to see if I could rid Oscar's smelly steam condition.  Using the boiler drain plug was easier than I expected, though a bit clumsy to turn the machine on its back and rock it back and forth left and right to empty all the water.  It seemed that opening the steam valve would release the vacuum, but not so.  Instead the drain valve glugged and spit for a few minutes with coaxing from the rocking.  A few big rocks came out initially that I lost with a spilled bowl, but here is the sediment that came out with the rest.  

The steam smells much sweeter now, with that funky, slightly foul, mineral smell gone or at least much reduced.

Considering that this was a simple draining with just a bit of sloshing, should I consider doing a descale to see what can be removed with citric acid?  Or should I leave it alone and just plan to do an occasional draining?

ethom: Boiler-drained-water.jpg
(Click for larger image)
back to top
 View Profile Link to this post
Markarian
Senior Member
Markarian
Joined: 27 Jun 2012
Posts: 658
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 Fri Jan 18, 2013, 4:12am
Subject: Re: NS Oscar..Microfoam..Group head temperature..
 

When you do the descale, expect the water to come out looking like the mutagen from Teenage Mutant Ninja Turtles. The inside of your boiler probably looks like the Statue of Liberty at this point, but some Dezcal will fix that up quick.
back to top
 View Profile Link to this post
Coffeenoobie
Senior Member
Coffeenoobie
Joined: 11 Dec 2011
Posts: 3,031
Location: PNW
Expertise: I like coffee

Espresso: N S Oscar
Grinder: K30 & Vario W
Posted Fri Jan 18, 2013, 10:36am
Subject: Re: NS Oscar..Microfoam..Group head temperature..
 

You might have had milk in the boiler, that can happen if people are not careful.  Since you have it open I would totally descale and drain the tank again.  I hope to do that soon to mine, just getting the cash for a few mod parts to trick out my espresso machine...

 
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
back to top
 View Profile Visit website Link to this post
ethom
Senior Member


Joined: 24 Nov 2012
Posts: 65
Location: Pittsburgh
Expertise: I like coffee

Espresso: NS Oscar, Silvia broken :o(
Grinder: Vario
Drip: Bosch
Posted Sun Jan 20, 2013, 10:29am
Subject: Re: NS Oscar..Microfoam..Group head temperature..
 

Markarian Said:

When you do the descale, expect the water to come out looking like the mutagen from Teenage Mutant Ninja Turtles. The inside of your boiler probably looks like the Statue of Liberty at this point, but some Dezcal will fix that up quick.

Posted January 18, 2013 link

I'll look forward to the crud extraction.

Coffeenoobie Said:

You might have had milk in the boiler, that can happen if people are not careful.  Since you have it open I would totally descale and drain the tank again.  I hope to do that soon to mine, just getting the cash for a few mod parts to trick out my espresso machine...

Posted January 18, 2013 link

Can't wait to see the photos and description of your mods.

I've read that milk in the boiler smells awful and can be hard to clean.  As long as the steam doesn't stink, I'll be happy.

Has anyone replaced the boiler drain plug with a valve that could be easily opened? I could see the benefit of attaching a drain tube to the valve outlet and running it to a sink or container.  What type and thread size valve would work?  It would need to withstand boiler pressure and temperature, I assume.  Maybe this one?
http://www.espressoparts.com/V_523?&search_id=1990767
Or something from Home Depot?

What is the best way to break the vacuum when draining the boiler? Opening the steam valve didn't seem to help, though it seemed that it would.

When descaling, is raising the water level sensor the best way to assure that crud above the water line gets treated?  If so, is it just a matter of loosening the nut and pulling up on the sensor?

Thanks
back to top
 View Profile Link to this post
Coffeenoobie
Senior Member
Coffeenoobie
Joined: 11 Dec 2011
Posts: 3,031
Location: PNW
Expertise: I like coffee

Espresso: N S Oscar
Grinder: K30 & Vario W
Posted Sun Jan 20, 2013, 11:54am
Subject: Re: NS Oscar..Microfoam..Group head temperature..
 

I have read that some people put a toggle switch in that allows them to over fill the boiler I will see if I can't find that thread on H-B.  I would like a drain on Oscar but I have not really looked at the parts, but I expect them to be non US standard.

 
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
back to top
 View Profile Visit website Link to this post
ethom
Senior Member


Joined: 24 Nov 2012
Posts: 65
Location: Pittsburgh
Expertise: I like coffee

Espresso: NS Oscar, Silvia broken :o(
Grinder: Vario
Drip: Bosch
Posted Sun Jan 20, 2013, 3:28pm
Subject: Re: NS Oscar..Microfoam..Group head temperature..
 

Coffeenoobie Said:

I have read that some people put a toggle switch in that allows them to over fill the boiler I will see if I can't find that thread on H-B.  I would like a drain on Oscar but I have not really looked at the parts, but I expect them to be non US standard.

Posted January 20, 2013 link

I thought the same, though the Oscar parts digram shows part 07300009, which would be replaced by a valve, described as "Nut 1/4" and ereplacementparts.com calls it "Nut Connection 1/4 Gas" which makes me wonder whether the valve on espresso parts.com might fit.  But for $23, I'd like to be a bit more sure.  I'll add it to my shopping list for a Home Depot visit, where it could be easily returned if not right.  This one is intended for air, not water:
Click Here (www.homedepot.com)

Regarding overfilling for descaling, someone wrote that they disconnected the fill level switch and heater element and opened the steam wand.  Turning on the machine then allows the boiler to fill until it flows out of the wand.
back to top
 View Profile Link to this post
showing page 6 of 7 first page | last page previous page | next page
view previous topic | view next topic | view all topics
Discussions > Espresso > Machines > NS...  
New Topics updated topics   New Posts new posts   Unanswered Posts new unanswered     Search Discussion Board search   Discussion Board FAQ faq   Signup sign up  
Not Logged in: Log In to Postlog in
Discussions Quick Jump:
Symbols: New Posts= New Posts since your last visit      No New Posts= No New Posts since last visit     Go to most recent post= Newest post
Forum Rules:
No profanity, illegal acts or personal attacks will be tolerated in these discussion boards.
No commercial posting of any nature will be tolerated; only private sales by private individuals, in the "Buy and Sell" forum.
No SEO style postings will be tolerated. SEO related posts will result in immediate ban from CoffeeGeek.
No cross posting allowed - do not post your topic to more than one forum, nor repost a topic to the same forum.
Who Can Read The Forum? Anyone can read posts in these discussion boards.
Who Can Post New Topics? Any registered CoffeeGeek member can post new topics.
Who Can Post Replies? Any registered CoffeeGeek member can post replies.
Can Photos be posted? Anyone can post photos in their new topics or replies.
Who can change or delete posts? Any CoffeeGeek member can edit their own posts. Only moderators can delete posts.
Probationary Period: If you are a new signup for CoffeeGeek, you cannot promote, endorse, criticise or otherwise post an unsolicited endorsement for any company, product or service in your first five postings.
Stefano's Espresso Care
Repair - Parts - Sales
Factory Authorized &
Trained Technician
www.espressocare.com
Home | Opinions | Consumer Reviews | Guides & How Tos | CoffeeGeek Reviews | Resources | Forums | Contact Us
CoffeeGeek.com, CoffeeGeek, and Coffee Geek, along with all associated content & images are copyright ©2000-2014 by Mark Prince, all rights reserved, unless otherwise indicated. Content, code, and images may not be reused without permission. Usage of this website signifies agreement with our Terms and Conditions. (0.474966049194)
Privacy Policy | Copyright Info | Terms and Conditions | CoffeeGeek Advertisers | RSS | Find us on Google+