I just got a 5 gallon kit

[PhalC1]

I started my first brew a couple days ago with a Mr Beer kit. The thread is right under this one currently lol

I got everything done and slapped on the lid. When should the bubbler start bubbling?

[slothrob]

You should see bubbles within a day or two. The buckets often don't hold pressure that well, so if you don't see any bubbles within a couple days you can lift off the top and look to see if there's a layer of foam forming on top.