The answer to 'how does water line replacement work' is that water line replacement is the process of replacing an existing water supply line that has become damaged, corroded, or outdated. This typically involves digging up the old pipe, cutting it, and installing a new pipe to connect the home's plumbing to the main water supply. The new pipe is usually made of more durable materials like copper, PEX, or CPVC to prevent future issues.
The process usually starts with a plumber inspecting the existing water line to assess the extent of the damage and determine the best course of action. They will then shut off the water supply, dig up the old pipe, and install the new one, reconnecting it to the home's plumbing system. Depending on the complexity of the job, water line replacement can take anywhere from a few hours to a full day or more to complete.