Rootman explained Teflon tape perfectly; I think the worked wants you to use duct tape.

...and idk about that. ¯\(°_o)/¯ Again, see Rootman. MINE is not quite long enough to reach the open drain & I found a PVC pipe that slips over it, perfectly. So I just put like 6" of the drain line into the PVC & it works great, no tape or anything.

Check with your neighbors, friends. See what they have done & what is recommended.