why is my bathroom sink yellow in the bottom?

Just as your home is often exposed to any surface in the water and other foreign matter, the bathroom sink occasionally shows signs of staining.
If there is a yellow stain on the bathroom sink, it may be caused by a variety of different environmental factors.
The best way to remove the yellow stain depends on the reason.
The main reason for the yellow staining in the bathroom sink is hard water or too much mineral water.
This stain source is especially possible if your home uses good water.
The yellowing caused by hard water occurs where the water flows into the sink, so stains may only appear at the bottom of the sink.
It is difficult to remove the hard water stains once they enter, so prevention is the key.
Several solutions can be used to remove hard water stains.
The House Cleaning Center recommends scrubbing hard water stains on the surface of the sink other than marble with a glass of vinegar and a tablespoon of lime or lemon juice, although another option is to purchase the recommended detergent for hard water stains.
Once the stain is removed, prevent the hard water stain by ensuring that the faucet in the sink does not drip, clean the sink after each use, and if the problem persists, install the water softener in the water pipe.
Another common reason for the yellow staining of the bathroom sink is the accumulation of oil at the bottom of the sink.
While you may not be using a product in the bathroom that you think is oil, you may be using several products with an oil base, such as an emulsion.
When you use oil
Based on bathroom products near the sink, wash the sink without wiping it, and the oil may accumulate at the bottom of the sink, eventually leading to staining.
Yellow oil stains in the bathroom sink can prevent spills by using oily products that are far from the sink.
However, since this can be inconvenient for many people, you can prevent dyeing by cleaning regularly, just like preventing hard water stains.
Cleaner registration recommended orange-
Basic products for cleaning foreign substances on bathroom fixtures or heating vinegar.
You can also take the initiative to prevent yellow oil stains by simply cleaning up any spills with a wet rag.