amazing - thanks! just adjusted the OPV to about 10 bar when blind, and sure enough, the drain back into the tank is now flowing at a much higher rate, pretty close to the recommended amount! was a bit late to pull shots tonight, but will try tomorrow to see if it's any different! i'm also looking forward to the lower brewing pressure and hopefully more forgiving shots for this relative newbie :)
now that i've opened it up, I can also see how if i do need to replace anything, it should be relatively trivial. On Wednesday, 20 November 2019 16:13:12 UTC-5, jpaul wrote: > > 12 bar is too high and yes, you may indeed see a change in behavior if you > lower it to between 9 and 10. Opening the machine to gain access to the > OPV is simple, 5 cover screws. And it should be easy to reposition the OPV > to make the adjustment screw available through the hole in the chassis. > > > > Good luck! > > > > *From:* bre...@googlegroups.com <javascript:> <bre...@googlegroups.com > <javascript:>> *On Behalf Of *jt123 > *Sent:* Wednesday, November 20, 2019 7:25 AM > *To:* Brewtus <bre...@googlegroups.com <javascript:>> > *Subject:* Re: vibration pump/OPV for brewtus III > > > > minor update: I just did the pump check > <https://www.youtube.com/watch?v=kEl-uNOC1P4>, and with the blind disc in > holding pressure, I'm only getting a very slow drip from the return tube > back to the water tank - not the 1 oz-ish in 12 seconds. This most likely > suggests the pump is on its way out right? > > > > The other difference I can see is my OPV is set to about 12 bar, so could > lowering it cause it to behave "closer" to normal behaviour? > > > > Whats unfortunate is I see during previous servicing, the OPV wasn't > placed in a way where the set screw is adjustable from the front of the > machine through the hole. So I may have to open it up to experiment further. > > > > > > On Tuesday, 19 November 2019 21:15:07 UTC-5, Johnty Wang wrote: > > Greetings! New(ish) owner of a used Brewtus III here. I think I'm facing > the OPV/pump issue that others have experienced: basically with the blind > basket it can reach and hold pressure at 10 bars, but when actually brewing > a shot, *sometimes* I the pressure drops from 10 bars to around 6, and > then back and forth again throughout the shot. > > > > I see that WLL has the pump/OPV/Deairator > <https://www.wholelattelove.com/products/expobar-vibration-pump-kit>available. > > Can someone confirm that it's the same one for the III? Also, given the > above symptoms, it's likely either the pump, OPV, or both that needs > replacement, correct? > > > > Thanks! > > -- > You received this message because you are subscribed to the Google Groups > "Brewtus" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to bre...@googlegroups.com <javascript:>. > To view this discussion on the web visit > https://groups.google.com/d/msgid/brewtus/8415efed-fb1e-4fd5-b371-8ccf4902821f%40googlegroups.com > > <https://groups.google.com/d/msgid/brewtus/8415efed-fb1e-4fd5-b371-8ccf4902821f%40googlegroups.com?utm_medium=email&utm_source=footer> > . > -- You received this message because you are subscribed to the Google Groups "Brewtus" group. To unsubscribe from this group and stop receiving emails from it, send an email to brewtus+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/brewtus/48998d94-cdac-4d5a-9fdd-6e5ce689b5d5%40googlegroups.com.
