The answer to 'water line slow draining' is that a slow-draining water line is often caused by a clogged or partially blocked pipe. This can be due to a buildup of debris, mineral deposits, or other obstructions in the plumbing system. Symptoms may include slow drainage, gurgling sounds, or standing water in sinks or tubs.
To address a slow-draining water line, you can try some DIY solutions like using a plunger, drain snake, or chemical drain cleaner. However, if the clog is severe or the issue persists, it's best to call a professional plumber who can properly diagnose and resolve the problem. They may need to use specialized tools or equipment to clear the blockage or identify any underlying issues in the plumbing system.