a. In routine cleaning, clean the bathtub with soft cloth (or sponge) and clean water and wipe the stains on its surface gently with soft cloth and toothpaste. Wiping the scales with steel wire balls or hard brushes may cause scratches.
b. After each three months, clean the backwater strainer to avoid its blockage by hair or other foreign matters.1. Cautions in routine maintenance: Keep articles that are prone to rusting away from prolonged contact with the kitchen sink. Clean the kitchen sink after each use and wipe it dry with a cloth. Try...