Picked up a new Brewtus IV-R in Feb of 2016, has been working wonderfully
to date. Over the last week however I have noticed a marked change in the
way water flows from the group head and the sound that it makes.
Previously it would wet the entire screen before moving towards the centre
in a nice consistent stream, with minimal sound aside from the rotary pump.
Now it bubbles audibly and as you can see from the video below has very
I've noticed a change in the consistency of shots now as well, as water
distribution does not seem even across the puck.
Any ideas the cause?
I have done regular cleaning every 2-3 weeks with cafiza. I use filtered
water only through the machine. I've cleaned since this began with cafiza
in the portafilter and backwashed it through the head but that hasn't
changed the results.
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