Using PVC pipe for a dust-collection system can create static buildup. Grounding the PVC eliminates the problem, but running ground wire inside the pipe is a pain, especially if you’ve glued the joints together.

Advertisement
Grounding PVC .

Using PVC pipe for a dust-collection system can create static buildup. Grounding the PVC eliminates the problem, but running ground wire inside the pipe is a pain, especially if you've glued the joints together. Grounding on the outside works just as well, so I came up with an inexpensive, easy method using aluminum tape available from home centers.

Apply a continuous ribbon of this paper-backed adhesive tape along the length of each run of ductwork. To ensure a continuous connection throughout the length of the ductwork, span any branch PVC fittings, such as blast gates, with stranded automotive wire, each end secured with a sheet-metal screw.
—Craig Walker, Hilham, Tenn.