The answer to 'my water line replacement is leaking' is that there are several common causes, including improper installation, damage to the new pipes, or a problem with the connections. Symptoms may include visible leaks, low water pressure, or unexpectedly high water bills. The best solution is to quickly identify and fix the leak to prevent further damage.
If the leak is small and easily accessible, you may be able to fix it yourself by tightening connections or applying a sealant. However, for larger or more complex leaks, it's best to call a professional plumber. They can properly diagnose the issue, make the necessary repairs, and ensure the water line is working properly again.