I just bought a 1 drain kitchen sink to replace my 2 drain sink. There will also be a garbage disposal attached. What do I do?

It is easier to connect single drain sink than double drain one.

Install your Garbage Disposer (GD) onto the sink, lead drain from GD to P-trap, and lead pipe form P-trap to the wall inlet.

If you have Dishwasher, connect it exactly the same way as it was with DBL drain sink.

Hope that explains

Milo

All good above except if you have a dishwasher you'll want to connect the dishwasher drain hose to the dishwasher connection on the new garbage disposal. Here, you'll knock out the plug inside the garbage disposal dishwasher connector (see disposal installation instructions), and then connect the dishwasher drain hose to the disposal using a SS hose clamp. Be sure to install the dishwasher drain in a HIGH LOOP (or connect to an AIR GAP at the counter if required in your state) before connecting it into your garbage disposal.

Mark