Step 6 · Connect Water Supply Line

This is the step most people slow down on. Take it one move at a time — there’s no rush, and you can rewind the clip as many times as you need.

Connect the new braided water supply line to the 90-degree elbow you installed on the dishwasher. Hand-tighten the coupling, then give it a final quarter-turn with a wrench. Route the other end to the hot water shutoff valve under the sink. Attach the line to the valve, ensuring the threads are aligned correctly to prevent cross-threading. Tighten the nut with an adjustable wrench until it is snug. If connecting to a copper pipe shutoff, use a second wrench to hold the valve body steady to prevent twisting and breaking the pipe.