I’ve tried scrubbing it several times with bar keepers friend soft cleanser and although it improves, it never goes away completely and it always comes back.
Mr. Clean magic eraser
Paste of Comet and peroxide
What does the peroxide add? Whitening?
Yes the peroxide is a bleaching agent. Milder than chlorine bleach
Vinegar
Anything with hard water, just soak with vinegar.
You can even fill a ziplock bag and tie it on a faucet.
If your water is really hard, pour vinegar into that little tube in your toilet too, the jets get clogged easily and that flushes them out and prevents them from blocking up. If they are blocked, the vinegar will eventually open them up if you don’t regularly.
Obviously water softener if you don’t have one, but depending what your waters like you may have to do more.
An alternative to vinegar is citric acid. You can buy it as a tub of crystals so it’s much cheaper because you aren’t paying for water. It’s great because you can add more teaspoons to water to make it stronger than vinegar. Plus it doesn’t smell bad like vinegar.
I would think you would need a filtration system to soften your water or it will just keep coming back.
I’ve had luck with citric acid on removing scale, but be sure to test a small part of your tub before using any new product to be sure it won’t damage the finish.
Unfortunately we do have a water softener but for some reason, there’s still buildup.
I’ve been seeing improvements with powdered bar keepers friend but it takes several passes and still comes back unfortunately.
