All this dirt has been on the bathtub for like a year or so since the previous owner just remodelled my house before we bought it and he didn't live there. I read many articles and videos to learn how to do it but none of them worked at all. The following items are the ones we tried:
- Used bleach and scrubbed it. We filled the bathtub with extremely hot water and poured bleach in it and scrubbed it later.
- Used Mr. Clean Magic sponge.
- Used Green Works, Kaboom etc. None of them worked even slightly.
- Used many other chemicals and no luck.
What worked for us was using pumice stone and it really worked but it was too much work and pain. It scrubbed out all the dirts (with some residue left) but didn't really make it look like new and shiny.
I wonder if there is any one who can recommend a better way to clean up the bathtub. So far what we learned from internet didn't work at all :/
I believe our bathtub is made of ceramic and it is a hard material compared to what we used to have that was fiberglass.