Thanks Ben, I just adjusted it to 10 and will see how that works, I may go lower. I used the turn the screw, backflush repeat until it decreased to 10 bar.
On a bit of a humorous note there is a bit of a learning curve when adjusting the OPV. As you can imagine I removed the drip tray, backed out the screw and hit the lever. When I released the lever, since the drip tray was not in place, hot water splashed my face...That was great. Obviously, Mensa rejected me for a reason. On Sep 20, 1:28 pm, Ben McCafferty <[EMAIL PROTECTED]> wrote: > A subject of debate. I set my backflush pressure at 9, and my shots pull at > about 8.5. I believe factory is set to about 10 for backflush, and about 9 > for shots. To adjust this, you need to set the pressure "up" to your > intended target, i.e. you can't just dial from 12 down to 9. In your case, > if you go to 12, and while holding that pressure dial the OPV down, you will > need to then release pressure and build it again to see where you are. If > you're at 10 now, dial it down again and release pressure, build pressure, > check. If your OPV were set too low, you could just dial it up to the > desired setting. So if you went from 10 to 8, for example, you could build > to 8, then dial up to 9 and be golden. > > Bottom line, release and rebuild pressure between each reduction of pressure > setting, but just build pressure and dial up if you need to increase > pressure setting. 12 is way too high; 14 is off the charts too high. The > balance between volume, grind, tamp, etc. is very hard to hit at such high > pressures, because you're having to really over-compensate to try to avoid > channeling, etc. > > bmc > "Faith will move mountains, but you'd better bring a shovel....." > > > From: MBB <[EMAIL PROTECTED]> > > Reply-To: <[email protected]> > > Date: Sat, 20 Sep 2008 12:35:57 -0700 (PDT) > > To: Brewtus <[email protected]> > > Subject: Change in Pressure > > > I just recently noticed on a backflush my pressure has risen from 12 > > to 14. Does anyone know where it should be set, or how about the > > factory setting? --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "Brewtus" group. To post to this group, send email to [email protected] To unsubscribe from this group, send email to [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/brewtus?hl=en -~----------~----~----~----~------~----~------~--~---
