Maintenance of Shower Enclosure 1.Cleaning Use a soft, dry cloth to clean the shower enclosure and shower tray. If there is minor dirt, use a soft cloth or sponge dampened with a mild detergent to clean. To remove stubborn dirt, use alcohol. When cleaning with a bathroom cleanser, follow the label instructions and use correctly. hydrochloric acid, acetone thinners or scouring powder. 2.Usage and maintenance of shower door rollers 1) Avoid striking the movable door, which may cause it to come loose.