Today at 7:10 a.m., my first-year spun off a 3-inch cleanout like it owed him money and got a head-to-toe rinse; we shut it down, talked through backflow and towel staging, then had him reseal it slow and proper to end on a win. What’s your best laugh-that-turned-into-a-lesson moment?
After that “spun off a 3-inch cleanout” at 7:10 a.m., I make them crack the plug an eighth turn under a contractor-bag tent and open a downstream faucet to bleed pressure first. You teach the bag-and-tape drill, or another splash plan? Either way, no hero pulls until the main is proven closed, towels staged, and a 6‑point ready, warming the fitting if it fights.
Cut 2‑liter over the cleanout with the socket through the cap catches the first burp; I back‑and‑fill the last quarter turn so the threads don’t gall. > the main is proven closed, towels staged, and a 6‑point ready, warming the fitting if it — agreed, and @peter51 do you ever use the bottle shield instead of the bag tent?
@todbake I throw a clear tote lid with a socket hole over the cleanout and give the cap a tiny “chirp” with the ratchet — if it hisses like a soda, I drop a laundry sink trap to ease the head before opening. On reassembly I go dope-only and mark cap-to-hub for hand‑snug + a quarter so rookies don’t reef it; you got a better tell for when it’s safe to crack?