With a vacuum all you get is what the motor can deliver. With a compressor, you can store the energy in a tank and your limitation is how fast you can get the air out of the tank.
A piece of soft plastic tied into a balloon shape seems to work better than a factory mouse.
You should get a patent on the tapered fittings.
I've been using strut on stub ups through concrete. Is there another way? If the stub is ENT (Coreline) I sleeve it with vacuum line duct. I also run spares for anything that can't be re-done overhead later. It's pretty sad how much damage the cement guys can do.
Prime PVC fittings?
