You're on the path to getting the steam boiler sorted out - resist the temptation to fiddle with steam boiler temperatures until its water level is correct. Something that might speed up the process would be to use the hot water tap to drain out measured amounts of water.
If the steam boiler was over-filled with 1.4 litres of water that would be about 48 fluid ounces - to get it to the factory fill level of 60% water and 40% steam, you'd want to drain roughly 19oz out - to be safe let's use 16oz as our target. Open the steam tap until dry steam comes out - if the vibe pump comes on - stop - because the boiler will autofill to the correct level. Otherwise, wait until the amber boiler light goes out, briefly open the steam tap to stabilize the boiler, then drain hot water into an 8oz cup - closing the tap immediately if the pump comes on. If there's no joy on the first drain, wait for the boiler temperature, stabilize the steam, and begin filling another 8oz cup - I tend to restrict this flow rate so there's no chance of under-filling the boiler If the blessed pump <still> doesn't turn on - I'd be leery of draining any more hot water - after a 16oz drain you're within a few ounces of spec, and normal steaming will bring it in quite nicely. Fussing with the steam boiler temperature isn't very productive, as long as your pressure gauge reads between .8 - .9 bar you're good to go. Raising the steam boiler to 1 bar can overheat the water going into the brew boiler, which especially on the PID machines means you risk losing the temperature control and stability that's the Brewtus' forte'. Cheers Jim On Friday, November 13, 2020 at 1:24:49 PM UTC-5 [email protected] wrote: > Display is at 96 > > Sent from my iPhone > > On Nov 13, 2020, at 10:22 AM, James Williamson <[email protected]> > wrote: > > Well it was almost a miracle. A little water returned in the steam > briefly once I started pulling shots out of the brew head. Tap continuing > to work at temp. Might be overall temp too low? I can work around water > by just ring stem wand longer til it goes the steam. How do I increase > overall temp? > > > > Sent from my iPhone > > On Nov 13, 2020, at 10:14 AM, James Mitchell <[email protected]> wrote: > > > Cool that this worked - but no, not really - miracles happen when > superstition defeats physics. > > This was just simple, crude physics realizing that water doesn't compress > like steam. > > The Brewtus has exceeded our expectations - with minor E61 tweaking and > fresh thermal grease on the thermocouple - it gives consistently tasty > pours from commercial beans, which is an inspiration to haul out the Gene > Coffee and resume roasting again. > > Cheers > Jim > > > > > > > > > Water is infinitely less compressible than steam - just given it an escape > route. > > On Fri, Nov 13, 2020, 12:43 James Williamson <[email protected]> > wrote: > >> Ok Jim. Followed instructions and what do you know stream is regular and >> forcefull and tap is hot and while not super forceful. It is adequate. >> You are kind of a miracle worker. Thanks so much!!! >> >> Sent from my iPhone >> >> On Nov 12, 2020, at 10:26 PM, Jim Mitchell <[email protected]> wrote: >> >> >> >> Hmmm – odd result, here’s a graphic depicting the Brewtus’s water flow: >> >> <783DA6BD8F0B413F9718C9FEA8016FFA.jpg> >> >> * [Taken out of an >> excellent article from ‘Bella Barista’ available here: *https://docp >> layer.net/18866840-Expobar-office-leva-dual-boiler.html >> >> >> >> Note that the hot water tap is fed directly from the bottom of the steam >> boiler – quoting from the same Bella Barista article: >> >> >> >> “Hot Water: >> >> The pipe for the hot water tap is at the base of the Steam/Hot Water >> boiler. As the hot water tap is opened, steam pressure forces the hot water >> from the boiler >> >> through the pipe and out of the hot water outlet.” >> >> >> >> Something you said in an earlier post might illuminate this problem too: >> “*also steam wand provides water (more)*.” >> >> >> >> The steam wand shouldn’t flow water when the machine’s up to temperature, >> outside of a brief ‘Sput!’ as it clears its throat – I’m suspecting that >> the boiler’s not getting up to temperature (around 102-105C) – possibly >> because the steam boiler has overfilled (it relies on free space in the >> boiler for steam to form) and as the water expands it trips the >> pressurestat. >> >> >> >> So let’s see if bleeding the boiler helps – from a cold machine - point >> the steam wand at the tray, open just the steam tap, and turn the machine >> on, after roughly 20 minutes you should see water from the steam tap, when >> it stops close the tap, wait a minute or two and re-open the tap. You’ll >> either see more water, or very wet steam comes out. Repeat this process >> until dry steam shoots out with real velocity, or you reach brewing >> temperature. >> >> >> >> Hopefully this cures the hot water problem – the next suspects are the >> pressurestat or a blown stem tank heating element. >> >> >> >> Good Luck >> >> >> >> Jim >> >> >> >> >> >> >> >> Sent from Mail <https://go.microsoft.com/fwlink/?LinkId=550986> for >> Windows 10 >> >> >> >> *From: *James Williamson >> *Sent: *Thursday, November 12, 2020 7:29 PM >> *To: *Brewtus >> *Subject: *Re: No group head water flow >> >> >> >> Hi Jim, >> >> >> >> The water from the hot water tap(what little trickles that I'm getting) >> is Luke warm or closer to cool...too cool to even register on my >> thermometer. >> >> Steam Wand and Group Head is 90+ >> >> >> >> James >> >> On Thursday, November 12, 2020 at 3:19:02 PM UTC-8 [email protected] >> wrote: >> >> A thin, ragged cheer from the troops... >> >> >> >> Congratulations, welcome to the DIY ranks - tere's a certain glee in >> (temporarily) frustrating the Dark Lords of Entropy with simple tools. >> >> >> >> I'll do some digging on your hot water tap flow after I dislodge the >> sleep cat from my lap and start dinner. >> >> >> >> A useful place to start would be to measure the temperature of the water >> from the hot water tap. This tap is fed directly from the steam boiler so >> expect at least 96C or above. >> >> >> >> Cheers >> >> Jim >> >> >> >> >> >> -- >> 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 [email protected]. >> To view this discussion on the web visit >> https://groups.google.com/d/msgid/brewtus/497B9E3C-9710-4BDB-AB6C-2C5B36DD59D5%40hxcore.ol >> >> <https://groups.google.com/d/msgid/brewtus/497B9E3C-9710-4BDB-AB6C-2C5B36DD59D5%40hxcore.ol?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 [email protected]. >> To view this discussion on the web visit >> https://groups.google.com/d/msgid/brewtus/B591703F-12F5-4F85-B2D8-09DFF15F48E2%40gmail.com >> >> <https://groups.google.com/d/msgid/brewtus/B591703F-12F5-4F85-B2D8-09DFF15F48E2%40gmail.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 [email protected]. > To view this discussion on the web visit > https://groups.google.com/d/msgid/brewtus/CAJLWrxsoGyJSoY7pt6Y_-4gsuwwUScV5FVvf_ireF7dG4hG98A%40mail.gmail.com > > <https://groups.google.com/d/msgid/brewtus/CAJLWrxsoGyJSoY7pt6Y_-4gsuwwUScV5FVvf_ireF7dG4hG98A%40mail.gmail.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 [email protected]. To view this discussion on the web visit https://groups.google.com/d/msgid/brewtus/51e98931-2974-4107-a5da-8f03ecbc8bddn%40googlegroups.com.
