Hi Everyone.

After a month of use, I checked the remaining water inside the boiler, I saw a little bit coffee residue.
I was surprised because the seals were new.

I think only gommino seal, piston seal or sleeve seal failures can cause this.
Anybody have seen similar problem?

Thanks

Nope, but it could mean some more lube is needed?

Another potential cause is leaving the PF locked in too long as the resulting vacuum will suck up gunk (happens to me sometimes but never far beyond the shower screen)