Hi,
Ever since I got my Dream I have been pretty annoyed about the noise from the machine. I find it to be more noisy than my old Vivaldi II.
I tried to play around with the pump pressure to see if that changes how much noise the machine makes, and it is clearly a big difference.
I have uploaded a video, containing sounds of respectively 3, 6, 9 and 11 bars using a blind filter.
In my ears, "9" and "11" does not sound healthy for the pump, but I am no expert.
Does this sound normal to you?
I would like the machine to sound like "3" or "6" bars, when used at the normal 8-9 bars.
Any tips or tricks to make these machines less noisy.
/Kim
https://youtu.be/IUcvDrCdVug
Pump pressure vs noise
Pump pressure vs noise
- La Spaziale S1 Dream
- Ceado E37S
- Rancilio Rocky SD
- Hottop B
- Ceado E37S
- Rancilio Rocky SD
- Hottop B
Re: Pump pressure vs noise
What size and pressure is the water line that the dream is connected to? A small or restricted long line or low pressure ( less than 2 bar) might be the cause.
Sent from my SM-G950W using Tapatalk
Sent from my SM-G950W using Tapatalk
Bob
La Spaziale Dream and Baratza Sette 270W
La Spaziale Dream and Baratza Sette 270W
Re: Pump pressure vs noise
Thanks for your tip. I checked the water pressure by reading in the Dreams display during idle and pre-infusion, which shows 2.5 bar. So I guess that is normal - right.
I also tried to fully open the tap water faucet that is connected to the same string as the machine. When doing this, the pressure during idle and pre-infusion dropped to 1.5 bar. However I did not make the noise better or worse when the pump was running.
So, I guess, that the water pressure is not the issue. Other ideas out there?
I also tried to fully open the tap water faucet that is connected to the same string as the machine. When doing this, the pressure during idle and pre-infusion dropped to 1.5 bar. However I did not make the noise better or worse when the pump was running.
So, I guess, that the water pressure is not the issue. Other ideas out there?
- La Spaziale S1 Dream
- Ceado E37S
- Rancilio Rocky SD
- Hottop B
- Ceado E37S
- Rancilio Rocky SD
- Hottop B
Re: Pump pressure vs noise
It's not just the pressure, it's the size of the line. So at static conditions the pressure might be ok , but if the line is too long or 1/4 instead of 3/8, there might be too much restriction when the pump is running.
As well, that pressure during pre infusion means that you have a pressure regulator ahead of the machine. (Household water pressure is typically higher ( about 5 to 6 bar). Try adjusting the regulator to a higher pressure. If you could send pictures of the plumbing that might help.
Sent from my SM-G950W using Tapatalk
As well, that pressure during pre infusion means that you have a pressure regulator ahead of the machine. (Household water pressure is typically higher ( about 5 to 6 bar). Try adjusting the regulator to a higher pressure. If you could send pictures of the plumbing that might help.
Sent from my SM-G950W using Tapatalk
Bob
La Spaziale Dream and Baratza Sette 270W
La Spaziale Dream and Baratza Sette 270W