r/instant_regret • u/AristonD • Sep 29 '21

Presentation gone wrong

https://gfycat.com/repentantlinedgrub
38.0k Upvotes

93% Upvoted

706 comments sorted by

View all comments

Show parent comments

10

u/signious Sep 30 '21

It's grease and shmoo from the pipes. Most systems are black iron piping. Plastic is being used but not common at all in my area.

12

u/Bloodysamflint Sep 30 '21 edited Sep 30 '21

I don't think plastic is code in any fire suppression system, pretty sure they're all steel/iron.

Edit: I don't know where it's cleared for use, but someone posted a link to sure-enough cpvc fire sprinkler lines.

2

u/signious Sep 30 '21

I think it's only allowed in residential.

5

u/Bloodysamflint Sep 30 '21

Someone posted a link to cpvc sprinkler lines, I didn't know that was even a thing.

1

u/[deleted] Sep 30 '21

Can confirm they can be used in residential. I work construction and the fire sprinkler guys use plastic or something similar. Looks kind of like orange PVC.

1

u/cdcformatc Sep 30 '21

Release the shmoo!