The answer to 'bathtub maintenance' is to regularly clean, inspect, and maintain your bathtub to keep it in good working condition. This includes cleaning the tub, checking for any cracks or damage, and addressing any issues promptly to prevent further problems.
It's recommended to clean your bathtub at least once a week, using a mild, non-abrasive cleaner and a soft cloth or sponge. This will help remove soap scum, hard water stains, and other buildup. Additionally, you should inspect the tub for any cracks, chips, or other damage, and address these issues as soon as possible to prevent further deterioration. If you notice any major problems, such as a leaky drain or a tub that won't hold water, it's best to call a professional plumber for assistance.