I have a tub that won't drain so tried to snake it but didn't get far, it
doesn't have a U type trap instead it has a can type thing, I did a little
web searching and it seems I have a barrel or vertical trap. Are there any
tips for working with this type of trap? I'm planning on getting the water
out of the tub and then opening the trap (it has a large nut on the top),
then I guess I'll clean it out and snake from there on. I've never worked
on one of these traps before - any tips?

Thanks,

Peter