by Dieter01 on Tue May 12, 2009 1:38 am I had the Alex Duetto plumbed in recently (including a pressure reduction valve set to 2 bar). When I open the water supply the machine confirms the 2 bar reading. However, after I pull the first shot the pressure goes up to ~4.5 bar and stays there. This is not a temperature effect, even if I pull the lever immediately after turning on the machine the pressure gauge will read 4.5 bar.
I have to turn off the water supply and bleed off the pressure (using the lever on the machine) in order to drop it again.
Is this normal?
- Index ·
- Tips & Techniques ·
- Espresso Machines ·
- Levers ·
- Grinders ·
- Coffees ·
- Brewing ·
- Cafes ·
- Buying Advice ·
- Home Roasting ·
- Knockbox ·
- The Bench
