Quote Originally Posted by Pat Vegas View Post
My kitchen sink has started back up with water.

But about an hour after I use the dishwasher. There is a gurgling sound and the water goes into the sink but up and down.

How do fix? don't fancy plumber and it happened last night so I couldn't get a plunger etc.
I poured some cleaner down and it seemed to work, but then it happened again a bit later.
Turn off your water and unscrew your u-bend. It's going to be full of horrible sh1t.

Alternatively, call an exorcist.