Wash the lower bedroom once a month with soapy water table water.
In areas where water is hard, calcium tartar can accumulate on the tap and rooms after prolonged use. To remove them, soak the affected parts in vinegar or a mixture of 50-50 % vinegar and water for about 15 minutes. Wipe the calcium tartar with a tape stamp or a soft brush, then wash with soapy dish water and rinse.
