La Marzocco O-Ring for Backflush Screw LEVA / Smart Steam – Original Spare Part
Once a day, without cleaning agent, a few seconds – backflushing is part of the ritual of any machine you want to look after carefully for a long time. At the end of this small routine is a screw that closes the backflush channel, sealed by a tiny O-Ring.
On the LEVA and on machines with Smart Steam, this O-Ring sits in the same spot: small, unassuming, but responsible for making sure no pressure escapes sideways during backflushing.
A seal that works quietly – until it doesn't
Rubber seals lose elasticity over time, mainly through repeated heat and pressure. Once an O-Ring turns brittle, it no longer seals completely – an effect that doesn't show up right away but becomes more noticeable with every backflush. Since the backflush screw is moved regularly during daily care, this O-Ring is one of the parts most likely to need replacing.
The replacement is small but important for a system that depends on a tight seal: the daily backflushing routine without cleaning agent, and the more thorough cleaning roughly every 50 shots.
At a glance
| Compatible with |
La Marzocco LEVA and machines with Smart Steam (backflush screw) |
| Function |
O-Ring seal for the backflush screw |
| Material |
Rubber, heat-resistant |
| Origin |
La Marzocco, Florence, Italy |
Who it's for
For anyone with a LEVA or a machine with Smart Steam whose backflush screw no longer seals completely. A small but important spare part for the machine's daily care.
Goes well with
For regular cleaning, our cleaning products are a good fit, and for dosing, our coffee scales from Normcore to Acaia. More on La Marzocco machines is available in our La Marzocco collection.
Frequently asked questions
How can I tell the O-Ring needs replacing?
If water or pressure escapes sideways at the screw during backflushing, the O-Ring is usually the cause.
What exactly does backflushing mean?
Backflushing refers to the daily rinsing of the group head without cleaning agent, plus the more thorough cleaning roughly every 50 shots with cleaning agent.
Can I replace it myself?
Yes, the O-Ring is easy to swap on the backflush screw.
Can I see the product before buying it?
Yes, in our showrooms in Bern (Gerberngasse 44) and Zurich (Hagenholzstrasse 50b) you can experience the original spare part live.
The roastery tip
A well cared-for machine deserves beans that deserve just as much care. Our main recommendation: Cozy Chocolate and Nutty Delight, dense, aromatic, full-bodied. For maximum body with no acidity at all: Very Nutty. For anyone who wants to discover a fruity experience: Wild Peach, lively and always a discovery. Our recommendation from the roastery, one of many.
