Gather Tools & Assess Existing Plumbing

What happens here

Begin by gathering all required tools including a plumber's saw, utility knife, Channellock pliers, measuring tape, ABS cement, and multi-purpose thread sealant. Visually inspect the existing under-sink drain plumbing, noting any issues such as a corrugated flexible pipe, improper pitch, or misalignment with the wall drain connection. Understand the problem area to plan the new installation effectively.

Goal: Collect all necessary tools and materials for the drain pipe replacement and observe the current, poorly installed plumbing setup.