When I built my shop I plumbed 4" pvc in the ground before I poured the concrete floor and it has worked out ok. Connecting DC hose and fittings to the 4" pvc usually take a couple of turns of duct tape to get them to fit. It works but when you want to switch off that particular port for
use on another machine it can sometimes be a PITA.
I remember seeing somewhere adust collector fitting for adapting 4" DC hose to 4" PVC however I can't seem to find it. Woodcraft talks about on their website but doesn't seem to carry it. Does anyone know where to get such fittings???
Thanks & Happy New Year to everyone
Rich