Install First Elbow and Check Slope

What happens here

After the initial pipe section is laid, attach a 90-degree PVC elbow to its free end. Dry-fit the elbow first to ensure it aligns correctly with the desired direction of the next pipe run. Rotate the elbow as needed to achieve the correct angle. Once positioned, visually check the pipe's slope along the trench. The presenter mentions worrying about 'drop,' which refers to maintaining the correct downward slope for drainage. Ensure there are no upward inclines or flat spots that could cause water to pool.

Goal: Attach the first elbow and verify the pipe's directional change and slope.