Also referred to as the mushroom valve. This keeps flow to the group head shut off until minimum brewing pressure is reached. They usually drip a little, but as they wear out unwanted water and steam from the group head will increase.
Due to extremely high demand for repairs, our current estimated turnaround time is 3 weeks. If you would like to reduce the amount of time your machine is in the shop, you can pre-schedule a day to drop off your machine by emailing us at firstname.lastname@example.org or text 360-567-0547. We will hold your place in line and you can drop off closer to the date it will be repaired.