I am remodeling my kitchen and I am adding a dishwasher. Previously there was none. I know my local ACE hardware sell's a pvc branch with tail to attach dishwasher drain. My question is with a dual sink setup how do I attach the branch tailpiece and the horizontal pvc piece that connects both sinks? Does anyone have a diagram or website where I can see a diagram of the setup? Everything I find only has examples for a single sink setup.

Thanks for your help