If you local code allows a high loop on the dish washer drain, then it can connect to a p-trap and standpipe, to a disposer, or to a outlet tee below your sink.
If you are in a locality that "requires" and air gap, then either a counter mounted air gap, or a Johnson tee will work.
Since you are in New Jersey, you most likely will not be required to have the air gap.
The standpipe would have a 1-1/2" reduced town to 3/4" FIP with a 3/4" MIP x 3/4" barbed fitting for the dishwasher hose.
If you are in a locality that "requires" and air gap, then either a counter mounted air gap, or a Johnson tee will work.
Since you are in New Jersey, you most likely will not be required to have the air gap.
The standpipe would have a 1-1/2" reduced town to 3/4" FIP with a 3/4" MIP x 3/4" barbed fitting for the dishwasher hose.
Last edited: