West zone concessionaire Maynilad Water Services Inc. (Maynilad) is offering septic tank cleaning services to its residential and semi-business customers in October 2024 in select parts of Caloocan, Las Piñas, Makati, Malabon, Manila, Muntinlupa, Navotas, Parañaque, Pasay, Quezon City, Valenzuela and Cavite province at no extra cost. Septic tank cleaning service normally costs around P4,700 per truck.