Improper dishwasher drain installation corrected for Lawrenceville homeowner experiencing slow water backup issues. Keep Smiling Plumbing identified missing high loop configuration causing drainage problems over time. Our technicians disconnected existing low drain line, rerouted through cabinet space, and secured proper high loop to prevent backflow. Reconnected to garbage disposal with correct drainage angles. No parts replacement needed - expert knowledge solved the problem. Learn More about proper appliance installations!