Puzzled by new OPV or what did I do wrong

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open_linux
Posts: 10
Joined: 16 years ago

#1: Post by open_linux »

I purchased a new OPV that I believe to be of better quality than the one installed in my brewtus II.
Based on info I found on the net , i tried to source the proper parts. Just for reference,you can see here what I sourced (I did not purchase from them): http://www.bellabarista.co.uk/coffeespa ... 279&cat=34

With that installed in series with the pump I now have reading on my dial of 7.5 bar with the rubber blind filter and 6 bar when brewing...but with a grind setting that used to produce 10 to 11 bar of pressure.
The taste is harsh so i believe it is actually brewing at 10-11 bar.

The machine manometer is connected to the top of the brew boiler.
Did I introduced air in the system or did anything wrong as to damage something unintentionally?
Is there a special procedure to purge the excess air if that is the problem?

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erics
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Posts: 6302
Joined: 19 years ago

#2: Post by erics »

Why not simply adjust it up to the same value you had with your previous OPV? It would be a rare occurance if a purchased OPV was adjusted "just right" out of the box.
Skål,

Eric S.
http://users.rcn.com/erics/
E-mail: erics at rcn dot com