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What makes the inside of a toilet bowl turn yellow?

The yellowing of the inside of a toilet bowl commode can be caused by several factors:

Urine Stains: Frequent use and not cleaning the toilet Inodoro regularly can lead to urine stains, especially around the waterline. Urine can leave a yellowish stain over time.

Hard Water Deposits: Hard water contains minerals like calcium and magnesium, which can deposit on surfaces and stain them yellow. These mineral deposits can build up over time, especially if the water in your area is particularly high in mineral content.

Microbial Growth: Bacteria and other microorganisms can thrive in the moist environment of a water closet. Some bacteria can produce a yellowish or orange biofilm.

Chemical Reactions: Some cleaning agents or chemicals in the toilet water might react with the porcelain, the water, or other substances to create a yellow discoloration.

Age and Wear: Over time, the glaze on the porcelain can wear down, making it more porous and susceptible to staining.

To prevent or remove these stains, regular cleaning with the appropriate cleaning agents is recommended. For hard water stains, products specifically designed to remove mineral buildup can be used. For biological stains, bleach or cleaners with disinfectant properties can be effective. If you're using strong chemicals, always ensure the bathroom is well-ventilated and follow the product's safety instructions.