I've been a BDB user for going on 5 years now, I think. Couple years ago I figured out if you open the hot water valve during brew you could mess with pressure. But this opened my eyes! Didn't realize slayers had such a long preinfusion. Just fiddled with my machine, tightened the grind and made a close approximation (still needs fine tuning) and its fantastic! Thanks!
The 920xl is truly a great machine.. there is a reason why Breville has refreshed pretty much all of their espresso machine except the dual boiler. They really had nailed it the 2nd time (920xl)
What's the purpose of putting the silicone on the hot water spigot if no water comes out from there? And even if it did, wouldn't it be better to leave it open for water to flow out and not stay in the spigot, idle with no escape?
Thanks for the clear guide, just did this to mine. Seems to work well so far. Will need a lot of practise to get the hang of ramping pressure up smoothly.
Thanks you so much for making this video. I read about this mod while ago but decided to only remove the micro switch and use the hot water knob to control the pressure and the water flow together .I adjust the knob to decrease the pressure to decrease the flow speed and used the preinfusion function to control the preinfusion time and pressure . I really did not fully understated how to do this mod but now that you showed how to do it on this video, I will do it tomorrow.I really like how the espresso taste with the only micro switch mode but maybe this mod can make my espresso to taste even better .
did you make a mistake? @1:40 you're pointing to the wrong tube? since we already covered that tube just before. It's in fact the solenoid to hot water spigot tube that you're talking about there but pointing to the input water valve
Can I get confirmation on the o-ring sizes? The larger one (1REC5 = 010) is known, but for the smaller one, I've seen people say 1REC1 (006) vs 1REC2 (007). Which of those matches the actual o-rings installed by the manufacturer? And which of those would be the better one to install?
Nice modification, but it lacks some degrees of rotation for better control. How about just using an SCR motor speed controller module to control the pump so that you don't lose the hot water dispenser? As a matter of fact, that's how I control the portafilter brew pressure from zero to 9.5 BARS on my Lelit Victoria PL91T espresso machine two years ago. I love my Lelit Victoria, but it doesn't have the steam power to froth milk to be able to do Latte Art. So, I've finally decided to get a Breville 920 dual boiler from Amazon and it will be here in a couple of days. I will definitely install a motor speed control module (SCR, silicone control rectifier) on it eventually. The modules are available from eBay and now, also from Amazon. The smallest modules are rated high enough to run the biggest vibration pump and even a rotary pump available.
great video....very helpful...nice work. I would appreciate it if you could put up the size details of those o-rings. I'm struggling to source those o-rings.
just add another needle valve would be easier I guess? looks like it's 4mm PTFE tube, you just need a T type fitting and a needle valve, and drill a hole somewhere to mount the needle valve.
Could’ve you reroute the output pipe of the needle to the browning chamber, and the input of the brewing chamber to water valve. This way the brew buttons would control the hot water and the brewing would be manual. I images that if you do pressures profiling that shot time by is not necessary.
No problem what so ever. If you can perform this task, you should be comfortable doing the basic maintenance on this machine which you should if you own a breville dual boiler.
Thanks. basically, we just need a needle valve to control the flow and pressure between the brew boiler and the 3 way solenoid? If we are able to somehow add an external needle valve without disabling the hot water spout, it'll still work right?
Yes, you can add another needle valve if you want to keep the hot water feature. Keep in mind that you can have this exact same functionality without performing this mod at all. Give this a try, while pulling a shot, turn the hot water knob just so slightly and you will see hot water coming out from the hot water spout. You can control the pressure this way without performing the mod. The only potential downside is that if you are doing a long slayer style shot, you will be dumping a lot of water into the drip tray and this might jeopardize the brewing temp. Enjoy!
Wow that’s a great video!! Thank you for the explanation of the silicon part! I tried this shortly after getting my bes900xl I tried this mod but the person I watched didn’t include the instruction about blocking the hot water spigot and I was really confused…lol. Frustrated at it not working right I reversed the tubes back to normal. And wow! Soon I’ll try this again but this time block the tube. Thank you!! Also, not having the descale opening in the bottom of the front, is there an easy similar way to empty tank ?
Hey! I had an issue where there were no water flowing to the grouphead even with the spout blocked off. Did yours work correctly after blocking the tube?
Hi Andy, you mentioned the suitable replacement o-rings that you are using. Do you have the specs on them? Great mod by the way - I just performed it on my BES900. I also moved the micro switch out of the way of the rotary knob. Now I’ve got to learn how to use the profiling. Cheers.😬
Hi Andy, great mod and I’m a bit late to the party. Saw Lance Hedrick’s video about the BDB which made me buy one specific for this, but I’m wondering about the ‘capped off’ pipe. Don’t think it is a good idea to create an appendix in a drink-water-pipe system. You always want to avoid it, even in your house. Water in this pipe will stay there and not move until the system gets drained. Bacteria will develop in non-moving water and thats not healthy. But this bacteria will not move either until a drain occurs. Then this ‘bad’ water runs back into the system during a drain and will come somewhere else in the Breville (steamer or grouphead?) when the it turns on again. You want to avoid that at all costs. The only way to solve this: - You get that water moving again by installing a second needle valve and keep water running through that pipe. - Or you cap the pipe at its source and make the appendix as short as possible. Thumb of rule is: an appendix may not be longer then 5 times its diameter. Not sure what (inside) diameter is, lets say 2mm. So any appendix should be shorter then 10mm. I don’t like appendices, even short ones and always cap lines at the junction with a minimal length. Didn’t do my mod yet, but ill try to find a better solution for it and could keep you posted about it
Tried to do this mod today. I’m 100% sure I rerouted the hoses the way you did, but it doesn’t work the way it should. When I turn the hot water nob the water pumps through the hot water spigot. I bought my BDB last week. Do you think Breville made changes to the inside of the machine, so that this mod doesn’t work like this anymore?
I have the same issue. I’ve just done it, 100% sure pipes are correct but any movement on the hot water dial and it kicks that on instead of a shot Did you find a solution?
@@kabana88 there is a switch inside right by the hot water knob. It’s held in by 2 screws. The switch has 2 wires going into it. All you have to do is unscrew the two screws, take the switch out of the holder, screw the holder back in and just tuck the switch out of the way so when you turn the knob it doesn’t tell the machine you want hot water. It takes 60 seconds. I worked this out myself but later on today I’ve seen in forums people referencing to this video on how to do it but they said he didn’t show the switch removal which you HAVE to do This is still a great tutorial
@@danieldring88 so happy to hear that its still possible with my machine! Thanks a lot! Will definitely try and do the mod again. I’ll let you know how it went :)
Great stuff on BDB mods, just want to get your opinion on descaling the BDB. I know many have broke their machine trying to follow the descale procedure. Would you try descaling when the day comes that the machine asks for descale?
I would descale but I wont use the factory descaling setting. If you have the 920xl which has the draining port at the right bottom front of the machine, you should descale yourself and do it manually. Drain the water from both the brew boiler and steam boiler. Mix a 50/50 vinegar solution and disconnect one of the tube on both the brew boiler and steam boiler, add the vinegar mixture and descale it this way. Drain the mixture using the drain ports and flush with clean water. If you always use clean water for the machine, you should not have to descale.
@@wuhc55 sorry, I meant to remove one of the tube on top of both boiler so you can pour your vinegar mixture into the boiler directly without turning on the machine and activate the pump to bring mixture into the system.
@@andytan6740 Hi Andy, I understood vinegar to corrode rubber seals? That's why a caustic descale solution is more appropriate. I also think that Breville has updated their faulty procedure if you look for the new PDF guide on their website. Otherwise the descale prompt will never go away! Thanks for this video btw, I'm going to give it a go today.
Mods like this scare me. I would rather work within the parameters of the stock machine, my grinder, and other things I can control. I doubt I'll ever reach the theoretical limit of what is already possible within those parameters. But if I get close, I would probably sooner upgrade the machine...but I appreciate that there are folks who have the patience and risk tolerance to tinker with stuff.
i'm just hearing about this for the first time. but if i understand this correctly, you end up using the hot water control knob to do flow control. so you vary the pressure you apply to the shot during the extraction. from 0-9 bars of pressure. varying the pressure during the extraction can change and improve the flavors you get out of the coffee.
![🔴 ฟุตบอลแชมป์กีฬา 7HD แชมเปียน คัพ 2024 [รอบรองชนะเลิศ]](http://i.ytimg.com/vi/zPm8ClLVhoE/mqdefault.jpg)
I've been a BDB user for going on 5 years now, I think. Couple years ago I figured out if you open the hot water valve during brew you could mess with pressure. But this opened my eyes! Didn't realize slayers had such a long preinfusion. Just fiddled with my machine, tightened the grind and made a close approximation (still needs fine tuning) and its fantastic! Thanks!
The 920xl is truly a great machine.. there is a reason why Breville has refreshed pretty much all of their espresso machine except the dual boiler. They really had nailed it the 2nd time (920xl)
What's the purpose of putting the silicone on the hot water spigot if no water comes out from there? And even if it did, wouldn't it be better to leave it open for water to flow out and not stay in the spigot, idle with no escape?
Andy,
I had two leaks on my machine. I purchased the o-rings you recommended and fixed the leaks in 10Mins. Thanks for a great video
Thanks for the clear guide, just did this to mine. Seems to work well so far. Will need a lot of practise to get the hang of ramping pressure up smoothly.
Andy, thank you for your detailed video instructions and repetition. My mod was a success thanks to you!
Thanks you so much for making this video. I read about this mod while ago but decided to only remove the micro switch and use the hot water knob to control the pressure and the water flow together .I adjust the knob to decrease the pressure to decrease the flow speed and used the preinfusion function to control the preinfusion time and pressure . I really did not fully understated how to do this mod but now that you showed how to do it on this video, I will do it tomorrow.I really like how the espresso taste with the only micro switch mode but maybe this mod can make my espresso to taste even better .
This work perfectly. The dual boiler is a nice machine.
Or can you detail more about this micro switch mod?
thanks for your detailed instructions, I really love your playlist as well lol
did you make a mistake? @1:40 you're pointing to the wrong tube? since we already covered that tube just before. It's in fact the solenoid to hot water spigot tube that you're talking about there but pointing to the input water valve
Great video, thank you! Took me quite a while to route the last tube to the water tap though!
Can I get confirmation on the o-ring sizes? The larger one (1REC5 = 010) is known, but for the smaller one, I've seen people say 1REC1 (006) vs 1REC2 (007). Which of those matches the actual o-rings installed by the manufacturer? And which of those would be the better one to install?
hi andy，i did the same way you put in a silicon blocking the hot water spout ，but mine keep leaking any way to fix？
Nice modification, but it lacks some degrees of rotation for better control. How about just using an SCR motor speed controller module to control the pump so that you don't lose the hot water dispenser? As a matter of fact, that's how I control the portafilter brew pressure from zero to 9.5 BARS on my Lelit Victoria PL91T espresso machine two years ago. I love my Lelit Victoria, but it doesn't have the steam power to froth milk to be able to do Latte Art. So, I've finally decided to get a Breville 920 dual boiler from Amazon and it will be here in a couple of days. I will definitely install a motor speed control module (SCR, silicone control rectifier) on it eventually. The modules are available from eBay and now, also from Amazon. The smallest modules are rated high enough to run the biggest vibration pump and even a rotary pump available.
great video....very helpful...nice work.
I would appreciate it if you could put up the size details of those o-rings.
I'm struggling to source those o-rings.
Great instructions thanks
O I hear yes 93.3 😄 thanks for the video
just add another needle valve would be easier I guess? looks like it's 4mm PTFE tube, you just need a T type fitting and a needle valve, and drill a hole somewhere to mount the needle valve.
Do I need to do anything to my pre infusion settings?
Could’ve you reroute the output pipe of the needle to the browning chamber, and the input of the brewing chamber to water valve. This way the brew buttons would control the hot water and the brewing would be manual.
I images that if you do pressures profiling that shot time by is not necessary.
does the clean cycle still work? and the 1 and 2 programmed shots as well? do they ramp to 9 bar shots like normal?
thank you for video, its very explanatory. i want to ask, any issue after this modification? or other problems? thank you again.
No problem what so ever. If you can perform this task, you should be comfortable doing the basic maintenance on this machine which you should if you own a breville dual boiler.
Andy Tan the regular maintenance being descaling but I saw on a different comment to do the descaling different then the manual says?
I enjoyed your video. Thank you. Or tell me the address of the website where I can buy o-ring
Thanks. basically, we just need a needle valve to control the flow and pressure between the brew boiler and the 3 way solenoid? If we are able to somehow add an external needle valve without disabling the hot water spout, it'll still work right?
BTW, from ur name. U're from Malaysia or Singapore?
Yes, you can add another needle valve if you want to keep the hot water feature. Keep in mind that you can have this exact same functionality without performing this mod at all. Give this a try, while pulling a shot, turn the hot water knob just so slightly and you will see hot water coming out from the hot water spout. You can control the pressure this way without performing the mod. The only potential downside is that if you are doing a long slayer style shot, you will be dumping a lot of water into the drip tray and this might jeopardize the brewing temp. Enjoy!
Wow that’s a great video!! Thank you for the explanation of the silicon part!
I tried this shortly after getting my bes900xl I tried this mod but the person I watched didn’t include the instruction about blocking the hot water spigot and I was really confused…lol. Frustrated at it not working right I reversed the tubes back to normal.
And wow! Soon I’ll try this again but this time block the tube. Thank you!!
Also, not having the descale opening in the bottom of the front, is there an easy similar way to empty tank ?
Hey! I had an issue where there were no water flowing to the grouphead even with the spout blocked off. Did yours work correctly after blocking the tube?
@@sungm64How did you block yours? Is water coming out somewhere?
@@goatsnaggler Nowhere else. I stuck a cut piece of silicone tubing and blocked it. I don't really see water dripping out so it seems to be blocked?
@@sungm64 not sure. Is any water going anywhere? It might sound silly but is your tubing correct?
Thanks for the great video!
You use part number U38883.006.0025 for the large o-ring, could you share the part numbe of the small o-ring?
Hi Andy, you mentioned the suitable replacement o-rings that you are using. Do you have the specs on them? Great mod by the way - I just performed it on my BES900. I also moved the micro switch out of the way of the rotary knob. Now I’ve got to learn how to use the profiling. Cheers.😬
Hi Andy, great mod and I’m a bit late to the party. Saw Lance Hedrick’s video about the BDB which made me buy one specific for this, but I’m wondering about the ‘capped off’ pipe. Don’t think it is a good idea to create an appendix in a drink-water-pipe system. You always want to avoid it, even in your house.
Water in this pipe will stay there and not move until the system gets drained. Bacteria will develop in non-moving water and thats not healthy. But this bacteria will not move either until a drain occurs. Then this ‘bad’ water runs back into the system during a drain and will come somewhere else in the Breville (steamer or grouphead?) when the it turns on again. You want to avoid that at all costs.
The only way to solve this:
- You get that water moving again by installing a second needle valve and keep water running through that pipe.
- Or you cap the pipe at its source and make the appendix as short as possible. Thumb of rule is: an appendix may not be longer then 5 times its diameter. Not sure what (inside) diameter is, lets say 2mm. So any appendix should be shorter then 10mm.
I don’t like appendices, even short ones and always cap lines at the junction with a minimal length.
Didn’t do my mod yet, but ill try to find a better solution for it and could keep you posted about it
Any updates?
were you able to cap the pipe successfully?
Hi Devrim, I also would love to hear/see how you went with trying to cap the line at the junction?
@@rogermefederer keep writing a reply which doesnt show up. Is it because ive added an url?
@@devrim1134 No idea. but I would not be surprised.
What were the two types of O-rings you used? Thanks for the video.
I got mine from grainger.com you can search for oring 1rec1 or 1rec2 one of these is the smaller oring and the larger one is 1rec5. Hope this help!
Is there any copper tubing inside this Breville machine?
Can you tell me size of these two boilers ?
Tried to do this mod today. I’m 100% sure I rerouted the hoses the way you did, but it doesn’t work the way it should. When I turn the hot water nob the water pumps through the hot water spigot. I bought my BDB last week. Do you think Breville made changes to the inside of the machine, so that this mod doesn’t work like this anymore?
I have the same issue. I’ve just done it, 100% sure pipes are correct but any movement on the hot water dial and it kicks that on instead of a shot
Did you find a solution?
@khash I found a solution for this if you are interested
@@danieldring88 yeah very interested! What’s the solution?
@@kabana88 there is a switch inside right by the hot water knob. It’s held in by 2 screws. The switch has 2 wires going into it.
All you have to do is unscrew the two screws, take the switch out of the holder, screw the holder back in and just tuck the switch out of the way so when you turn the knob it doesn’t tell the machine you want hot water. It takes 60 seconds.
I worked this out myself but later on today I’ve seen in forums people referencing to this video on how to do it but they said he didn’t show the switch removal which you HAVE to do
This is still a great tutorial
@@danieldring88 so happy to hear that its still possible with my machine! Thanks a lot! Will definitely try and do the mod again. I’ll let you know how it went :)
Great stuff on BDB mods, just want to get your opinion on descaling the BDB. I know many have broke their machine trying to follow the descale procedure. Would you try descaling when the day comes that the machine asks for descale?
I would descale but I wont use the factory descaling setting. If you have the 920xl which has the draining port at the right bottom front of the machine, you should descale yourself and do it manually. Drain the water from both the brew boiler and steam boiler. Mix a 50/50 vinegar solution and disconnect one of the tube on both the brew boiler and steam boiler, add the vinegar mixture and descale it this way. Drain the mixture using the drain ports and flush with clean water. If you always use clean water for the machine, you should not have to descale.
@@andytan6740 sounds like a good idea, when you said to remove one of the tube, what tube to remove and what is the purpose?
@@wuhc55 sorry, I meant to remove one of the tube on top of both boiler so you can pour your vinegar mixture into the boiler directly without turning on the machine and activate the pump to bring mixture into the system.
@@andytan6740 ah yeah that makes sense, thanks
@@andytan6740 Hi Andy, I understood vinegar to corrode rubber seals? That's why a caustic descale solution is more appropriate. I also think that Breville has updated their faulty procedure if you look for the new PDF guide on their website. Otherwise the descale prompt will never go away!
Thanks for this video btw, I'm going to give it a go today.
Mods like this scare me. I would rather work within the parameters of the stock machine, my grinder, and other things I can control. I doubt I'll ever reach the theoretical limit of what is already possible within those parameters. But if I get close, I would probably sooner upgrade the machine...but I appreciate that there are folks who have the patience and risk tolerance to tinker with stuff.
What was the purpose of this modification?
how to operate it after the modification
Thankyou but please explain the point?
i'm just hearing about this for the first time. but if i understand this correctly, you end up using the hot water control knob to do flow control. so you vary the pressure you apply to the shot during the extraction. from 0-9 bars of pressure. varying the pressure during the extraction can change and improve the flavors you get out of the coffee.
我听到中文歌了，在看下你名字。看来是中国同胞啊