this post was submitted on 11 Dec 2023
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I keep seeing this brought up but I can't find information on how they work. How do you actually get new wire through a conduit? Do they not get stuck in corners? Or on the ridges of the tubes? What if you need to send wires upwards?
A pull string is typically vacuumed though the conduit and left inside for attaching to and pulling wires through.
Pull a pull string in the conduit along with the wires.
When you pull new cable you use the existing pull string and pull a new pull string through the conduit at the same time; this was you still have a pull string.