4. After adjusting the balance of the bathtub with a level, use white/clear silicone around the tub base to complete installation. (figure 2) CLEANING AND MAINTENANCE 1. The bathtub is usually cleaned with general liquid detergent and soft cloth, can not use the detergent that contains acetone or ammonia water element. When you disinfect the bathtub, please use disinfectant without formaldehyde. 2. Surface stain can be rubbed with toothpaste on soft cloth. 3.