A rarely known source of yellow seats is sunlight. Few people know about this, but sunlight is actually pretty good at yellowing white toilet seats. The UV light, which is invisible for us, can cause sunburn for people and for toilet seats. It’s just that sunburnt toilet seats turn yellow instead of red.
Also know, how do you get yellow stains off toilet seat?
You can use bleach, baking soda, or vinegar. They all work fine. For the bleach, you remove the toilet seat from the toilet and soak in bleach and water solution, after a few minutes, scrub until the stains are removed. Rinse and fix it back to the toilet.
Subsequently, question is, how do I get my toilet seat white again? Mix ¼ cup of baking soda with ½ cup of warm water in a small bowl. It should have a paste-type consistency. Smear this mixture onto the stained areas, and let it sit for 15 to 20 minutes.
Furthermore, what causes yellow stains on toilet seat?
They clean their bathrooms regularly and yet the toilet bowl has nasty brownish or yellow rings around it and on the bottom of the bowl, or stains running from below the rim to the water level. These stains are caused by a buildup of minerals from hard water [source: family handyman].
Can you make yellowed plastic white again?
Fill a bucket or large bowl with one part bleach and one part water. Fill it enough so that it will cover the yellowed pieces when they are submerged. If the items cannot be submerged in the bucket, put on gloves, then soak paper towels with the bleach solution and cover the yellowed plastic with the wet paper towels.