How old is your PVA and do you store it in a dry sealed box? If not your spool has probably absorbed too much moisture and you need to dry it.
Another possibility could be that your BB core needs cleaning. Follow the UM instructions for hot/cold pulls.
My PVA clogs the nossle (BB 0.4mm) 30min to an hour in printing.
It's like baked.
Any recommendations?Edited by ACDCC
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