I am in the slow process of installing a dust collector as funds are available. The DC will be going in the corner inside for now and later in another room. There is one problem I am not sure about, I plan on using thin wall white 4" pipe w/the fewest amount of flex possible. So now to my problem, where it is stationed in the corner there is a old cast iron vent pipe that was used for the bathroom when there was one in the shop. I need to run the line for the DC between the CI pipe and the wall except there is not quite enough room (I need an inch) . Will it be a problem to use fittings to go around the pipe or would it cause a problem to squeeze a short section of flex in between? Removing the CI pipe will be real tough as it goes through 2 sections of roofing at different levels and the lower one is NOT accessible.
So do I cut it out and seal it at the ceiling or can I go between the wall and the CI pipe? cutting it out will involve securing it first to the rafters with a bolt through it and then cut it into.
So do I cut it out and seal it at the ceiling or can I go between the wall and the CI pipe? cutting it out will involve securing it first to the rafters with a bolt through it and then cut it into.