// CODE SNIPPET
P2717.3 Sink, Dishwasher and Food Grinder
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The combined discharge from a sink, dishwasher, and waste grinder is permitted to discharge through a single 11/2-inch (38 mm) trap. The discharge pipe from the dishwasher shall be increased to not less than 3/4 inch (19 mm) in diameter and shall connect with a wye fitting between the discharge of the food-waste grinder and the trap inlet or to the head of the food grinder. The dishwasher waste line shall rise and be securely fastened to the underside of the counter before connecting to the sink tail piece or the food grinder.