Try cleaning your sink with a paste of baking soda and water. You can then rinse the sink with vinegar, which will bubble and fizz. Vinegar naturally disinfects while helping remove hard water stains from your stainless steel sink. Once your sink is clean and dry, you can easily add an extra shine.
Sprinkle baking soda or Borax directly on the hard water stain in your sink, then spray on the same vinegar and water solution you used on the bathtub. Let the cleaners sit for 15 minutes, then scrub with a soft brush or sponge. (Remember to wear gloves when cleaning with Borax.)
Vinegar and baking soda are a versatile, efficient cleaning team for several spaces around the house, and kitchen and bathroom sinks are no exception. If you don't have lemon, follow your baking soda application with an undiluted vinegar spray to get rid of hard water marks and other difficult stains.
Put a cup of hydrogen peroxide in a spray bottle. Spray evenly over the porcelain. Let the hydrogen peroxide sit for 15 minutes to an hour. Rinse and buff with a microfiber cloth for a clean, bright shine.
For both white and colored porcelain, liquid oxygen bleach—such as hydrogen peroxide—is a good alternative. It may take longer to work, but it's less caustic and more environmentally friendly. Pour the bleach product suited to your type of porcelain into a spray bottle.
The brown stain is from a large amount of iron in your water. It is closely related to simple rust that you see on metal, which is iron oxide. Your water probably comes from groundwater that filtered through rocks containing iron-rich minerals on its way to the well.
Use a Natural Cleaner
Begin by pouring up to a whole box of baking soda down the drain, depending on the severity of the slime. Then pour in the vinegar, up to half a bottle. You should hear or see the fizzing. Let it react for about five minutes, then slowly pour the boiling water down the drain.
The Method: First, I spray the sink down and pat it dry with a paper towel. It's okay for the sink to be slightly damp, but it shouldn't be wet. Then, I sprinkle enough (read: a lot of) baking soda into the sink so that it covers the bottom, and I dot a few very small drops of hydrogen peroxide over the baking soda.
For white porcelain only, bleach can be used to remove stains; never use chlorine bleach in colored or vintage porcelain, as it can damage the finish. For both white and colored porcelain, liquid oxygen bleach (such as hydrogen peroxide) is a good alternative.
In conclusion, while baking soda and vinegar may seem like a simple and easy solution for cleaning drains, they are not actually very effective in most cases. In some cases, baking soda and vinegar can even cause damage to your pipes.
Apply vinegar or lemon juice directly onto a cloth and scrub the limescale until it comes away. Alternatively, mix one part lemon juice or vinegar to four parts water. Put the solution in a spray bottle and spritz it onto tiles and plugholes. Leave this to soak for up to an hour for stubborn scale deposits.
As pointed out in Tap Score, “black slime is usually due to bacteria that feeds on oxidized iron and manganese in your water supply.” So, continuously using your bathroom sink, bathtub, or kitchen sink while there is a mess of black gunk in there will only build up the mass of the black gunk.
The "creepy black stuff" in your drain is made up of a combination of things, mostly decomposing hair, soap scum, toothpaste grit, shaving cream residue, skin cells, etc.
Use a Magic Eraser to remove stains and soap scum
If you are looking to avoid using chemicals altogether or if marks are particularly rugged, then cleaning with a Magic Eraser can help achieve the perfect shine with no extra product. 'Use a Mr. Clean Magic Eraser to quickly scrub your porcelain sink.
Abrasive tools: Abrasive tools like scouring pads and steel wool could cause unsightly scratches to form on porcelain sinks. Abrasive cleaners: Abrasive cleaners that contain harsh chemicals can stain, scratch, or damage the finish on porcelain sinks.
Porcelain is a highly durable material for dental restorations, but it is not entirely indestructible. Stains will not penetrate the surface of quality porcelain restorations unless the porcelain has been damaged by: Highly abrasive toothpastes that wear away the outer glaze of the porcelain.
The best way to clean your porcelain kitchen sinks is by using bleach. Spread the cleaner on stains and let it sit overnight, then wash away in the morning. The stains in a porcelain sink can be removed using white vinegar. This method will also sanitize your sink and remove any harsh smells, making it clean again.