Sterling showers are made of Vikrell material, which is resistant to chips and cracks. This type of shower is an expensive investment, so it is important to clean it weekly or after every use to prevent mildew, mold and dirt from seeping into the material. Products for fiberglass showers include Fuller Easy Shower Spray and Weiman Fiberglass Cleaner and can be purchased from online stores or some local retailers.
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Remain outside of the shower and move the head of the shower away from you. Turn the warm water faucet on. Use the showerhead to rinse the stall. Use the detachable piece if applicable. If you cannot reach all areas, use a spray bottle with warm water.
Spray the cleaner on one wall of the stall. Start at the top and spray downward until you reach the bottom. Let the cleaner soak the wall for roughly 1 minute.
Scrub the entire wall with a nonabrasive sponge. Begin at the top and scour in rows across. Complete this until you reach the bottom of the wall.
Rinse the soap off with the showerhead or a spray bottle.
Repeat steps 2 through 4 for the other three walls, the ceiling and the floor, as well as the soap tray, shower knobs and fixtures.