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Over time, a porcelain sink or bathtub might develop stains in the inner basin. The unsightly smudges can make the room look unkempt. The color of the stain can shed light on what substance is covering the fixture. Using the following list, take steps to remove blotches and prevent them from returning. 

Types & Causes of Sink & Bathtub Stains

1. Airborne Bacteria Causes Pink Stains

The airborne bacteria Serratia marcescens gravitates to bathrooms. The molecules settle on wet sinks and bathtubs and feed on the soapy deposits the water leaves behind. The bacteria create a sticky film that stains surfaces pink or pale orange.

The bacteria can’t survive in chlorine, so use chlorine bleach to remove the spots. To prevent future staining, wipe down porcelain sinks and bathtubs to eliminate dampness and soap scum after each use. To prevent moisture buildup, install an exhaust fan in the bathroom.

2. Copper Deposits Cause Greenish-Blue Marks

sinksIf the bathtub and sink stains have a blue or green tint, corroded copper water pipes are likely the cause. Copper will begin to deteriorate when the water pH level is above 8.5, indicating high alkalinity, or under 7.0, which means the liquid is highly acidic.

Scrubbing the plumbing fixtures with white vinegar should remove the stains. A plumber can install a filter that neutralizes acid or pump an agent that corrects PH into the system to restore the proper balance and curb pipe corrosion. 

3. Hard Water Causes Yellow Stains

Although it’s safe to drink, hard water can wreak havoc on plumbing fixtures. The buildup of calcium, magnesium, and iron deposits can clog the inside of pipes. When water evaporates, the minerals can also cause powdery yellow streaks to form on surfaces.

Cleaning the sink or tub with white vinegar or a solution of baking soda and water will remove the stains. Installing a water softener will replace the hard water minerals with sodium ions.

 

If your porcelain sink or bathtub is covered in numerous stains, the skilled technicians at Porcelain Glaze in Clinton, CT, will make your investments look like new again. For over 30 years, the company has been the go-to source for bathtub refinishing, tile reglazing, and additional solutions to rejuvenate clients’ bathrooms. Call (860) 669-2576 today to schedule a consultation in the Middlesex County area. 

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