I Love stacking risers
Job i completed last summer 4” sch 40, 6” sch 40 and 3” sch 40 was alot of fun installing. I have videos of the deluge trip test and foam test if you guys are interested.
Job i completed last summer 4” sch 40, 6” sch 40 and 3” sch 40 was alot of fun installing. I have videos of the deluge trip test and foam test if you guys are interested.