Figured out a trick for fishing wire through old fire stops

I had a nightmare run last Tuesday in a 1970s apartment building near downtown Austin. Every single fire stop was packed with that old rockwool and it just ate my glow rods. Finally tried a 1/2 inch fiberglass fish tape with a bullet tip and some dish soap and it slid through like butter. Anyone else deal with those crusty old fire stops and find something that works better?

2 comments

2 Comments

sethmartinez3d ago

Man, that brings back a memory. Buddy of mine was fishing through a building from the 60s and hit the same garbage. He tried vegetable oil on a steel fish tape and it worked okay but made a hell of a mess. Said the smell hung around for weeks.

ryanj602d ago

My neighbor tried WD-40 once. Said it worked but made his whole van smell like a garage sale.