Crack in sump glass

[Mikemilly245]

It’s on the union for one of the drains. Smooth to the touch although now I’m scared to take them off if I ever have to. Water won’t even be that high. What should I do ? Would you trust it ??

 

[lapin]

If it’s been like that for a while then I would not worry about it. Probably cracked when the bulkhead was installed. I would not remove the bulkhead because it will change the pressure and could cause the crack to run.
I’m not there so this is a guess