Maintaining outdoor fountains ensures their longevity and optimal performance. Regularly clean the fountain to prevent algae buildup and debris accumulation. Use mild soap and a soft brush to scrub surfaces, especially if made of stone or concrete. Check and clean the pump monthly to prevent clogs and ensure smooth water flow. Refill water frequently to compensate for evaporation and use distilled water to minimize mineral deposits. In winter, drain and cover the fountain to prevent freezing damage. Adding an algaecide or fountain cleaner can help maintain water clarity. Proper maintenance keeps outdoor fountains beautiful and functional year-round.