My vacuum system had such a sharp turn in the hose between the wall plug in and the vacuum unit, it would get clogged up very easily.
I cut some of the hose and made a slighter radius, no more problem with clogging up.
Robert & Sheryl
2014 Redwood 38FL
MoRyde 8K IS, Disc Brakes, MoRyde Pin Box
17.5 Goodyear G114's, RV Armor Roof
2018 RAM 3500 DRW, Curt Q24 Hitch