Maintaining your spa involves balancing the water chemistry by testing and adjusting pH, sanitizer, and alkalinity levels at least once a week. Clean the spa filter regularly to ensure efficient operation, and rinse it every few weeks, replacing it as recommended by the manufacturer. Drain and refill the spa water every three to four months, depending on usage, to maintain water clarity and hygiene. Clean the spa cover, remove debris, and keep the surrounding area free from dirt and leaves. Regularly inspect the spa for signs of wear or leaks and address any issues promptly to ensure it remains in good condition.