To prevent clogs in your drains and maintain their cleanliness, you should avoid pouring grease, oil, or food scraps down the drain. Use drain strainers to catch hair and debris, and regularly flush drains with hot water and vinegar to break down buildup. Avoid using chemical drain cleaners as they can damage pipes.

Key benefits of upgrading to a tankless water heater compared to a traditional water heater include energy efficiency, longer lifespan, continuous hot water supply, and space-saving design.

As a licensed plumber, safety measures involved in repairing a gas line at your property include turning off the gas supply, ventilating the area, using proper tools and equipment, checking for leaks with a gas detector, and following all local codes and regulations. It is important to wear appropriate personal protective equipment and have a fire extinguisher nearby.

As a licensed plumber, you can determine if gas lines need to be replaced or repaired by looking for signs such as hissing sounds, gas odors, visible corrosion or damage, decreased gas pressure, or frequent gas leaks. It is important to consult with a professional plumber to assess the situation and recommend the appropriate course of action.

I would need more information about the issue with your water heater in order to provide an accurate estimate for the repair.