Modern Power Vac does this as well. If the 3 top floors go to a common roof vent and if its a hooded vent, it will likely have a screen. Our screens were twice the mesh size of a window screen but the lint still plugged them off totally. If you find thats the case, either cut the screens or refit with a larger mesh screen.
Victor L on May 06 2018 at 07:01 PM