Prohibited Plumbing Traps - Bell trap, Crown-vented trap, Drum trap, Moving parts trap, Non-integral trap, S trap
Older Bathroom With A Drum Trap? (Here's How To Clear It!)
Elements of plumbing . .. ^^ Fig. 33.—Drum trap. Preparing.—Take the 10-inch piece of lead pipe and holdit in one hand, in the other hand take a pine dresser.Strike the lead pipe
Drum Trap
What is this thing....??? - Plumbing Inspections - InterNACHI®️ Forum