I recently got hold of a secondhand portafilter that had apparently been used with a commercial Rancilio machine. Ive converted it to a bottomless portafilter, but I find that it is a very tight fit in my Silvia. Until I attacked the lugs with a file I could barely get get it to lock in at all. It all works fine now, but I thought that it was a bit odd that it fitted so poorly.
Has anyone else found that commercial portafilters are a bit tight in a Silvias grouphead?
Has anyone else found that commercial portafilters are a bit tight in a Silvias grouphead?


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