Three days to find a crack in a steam drum near Baton Rouge

Had this steam drum at an old plant near Baton Rouge. Just kept losing pressure. Rookie me checked all the obvious spots. Gaskets. Valves. Even pulled the manway. Nothing. Finally got a dye penetrant kit and crawled inside with a flashlight. Found a hairline crack in a weld seam behind a baffle plate. Took three full days of chasing ghosts. Anyone else ever spend way too long on a simple fix like that?

3 comments

3 Comments

skyler_white951mo ago

Well hold on a second, "dye penetrant" isn't exactly right for crawling inside a drum. You're probably thinking of a visible dye or a fluorescent penetrant, but it's usually applied from the outside and you check it with a special light. Still, three days chasing a crack behind a baffle sounds about right for a steam drum, those things hide their secrets well.

skyler_white951mo ago

Wait wait wait... you're telling me that whole time I was inside that drum, I coulda been missing cracks with just a regular dye and not the right kind of penetrant? Man, that's insane. I swear I remember reading some manual years ago that said "use dye penetrant" and I just assumed that's what I was doing crawling around in there with a spray can. That explains a lot actually, like why I never saw anything pop up under my little UV light I kept dropping in the dirt.

coleman.jamie1mo ago

Man oh man, that brings back a memory. I once spent two whole days trying to figure out why a small boiler feed pump kept vibrating like crazy. I checked the motor bearings, the coupling alignment, even balanced the impeller twice. Turned out a scrap of rubber gasket material had wedged itself in the pump suction strainer. Just one little piece of debris. I felt like a total fool when I finally pulled the strainer and saw it sitting there. Your story makes me feel a little better about that one.