The answer to 'water line making noise' is that there are several common causes, including high water pressure, mineral buildup, or loose pipes. Symptoms may include banging, whistling, or vibrating sounds coming from the water pipes. Solutions can range from adjusting the pressure regulator, flushing the lines, or securing loose pipes.
If the noise is persistent or you're unsure of the cause, it's best to call a professional plumber to diagnose and fix the issue. DIY repairs may be possible for simple problems, but more complex issues require the expertise of a licensed plumber to ensure the problem is properly resolved and prevent further damage.