Bon Ami, a sponge, and elbow grease. Definitely replace the lining if it looks like a science project about to morph into something you find in a Japanese film. And even if you can't get it all, don't fret, and buy some shower spray to use after bathing. (I'd recommend Method brand, found at Target.)
I take it Bon Ami is a brand of the hardcore bleach powder stuff? That might work. I've got some stuff that's supposed to "restore color and gleam to porcelain", I'll probably dump a can of the stuff in there, scrub until I can't breathe the fumes any more, hit it with the rest of the can, and finish with the shiny crap to undo the surface damage from the powder.
I have no domesticated icon. Must go get hone.
It's amazing, but also not like harsh chemical cleaner type stuff, so you can breathe when using it. etcet
also speaks wise words.
shit that involves bleach, and has the words "mildew" and/or "grease" in the description of shit it does away with, is a plus.
also, after rinsing thoroughly, an ammonia-based cleaner will get whatever the bleach didn't. make sure you've got good ventilation.
Mmm, homemade Chlorine gas. Nothing like an exothermic reaction producing toxic and corrosive gasses to get out that stubborn dirt.
Second the Bon Ami suggestion, but recommend a tub scrubby pad thing to go with - it's more durable than a sponge and saves some elbow grease. Spray any obviously growing things (orange, black) with a little bleach first (and rinse after letting it sit for a few) to make life easier, and if the grout is awful, those Mr. Clean Magic Erasers are really magic (just don't use them on anything that might scratch - porcelain and ceramic tile are OK, painted walls and vinyl floors and probably cultured marble and fiberglass tubs not so much).
Product guide for the magic eraser says it works on fiberglass. We have a winner for step 3 in that case.
1. Wet down surfaces, hit with scrubby sponge soaked in liquid bleach
2. Apply Bon Ami or similar liberally, let sit, scour like a motha with hardcore scouring pad
3. Hit it with magic eraser to lift whatever spots are left
4. Resurface with my amazing shine compound stuff
5. Sit down and watch all the pretty colors while my brain recovers oxygen saturation.
Many stains are here, and I am here. Soon, dirt will not be here. The dread pirate ArcSine is here for their SOULS!
-bleach for the non slip area along with a little brushing action
-try some type of cleaner made for cleaning showers/tubs too.
-as far as the crack and crevices... get a razor and scrape as much of that crap out as you can. go buy a tube of white silicone and recaulk all the seems. You would be surprised how much of a difference that can make and it won't cost much at all.
Totally don't trust myself to recaulk an apartment tub. Might take an X-Acto to the nasty bits and shave off the permanently discolored stuff, but I don't know if revealing the not-surface-cured stuff would be bad though.
super easy... worst case, use your finger to smooth it out and wipe it clean with paper towel... shouldn't take more than 20 minutes tops. Let it dry for about 4-6 hours and your done. You could even buy a caulk gun for $3 and the whole thing will be under $10. So worth it if its nasty.
If it won't come clean otherwise, I might end up doing that.
If the tub is basically stripped and whatever makes it all shiny and easy to clean is gone (as it is on mine), it's probably best to get a tub liner ($150-$200) or reglaze it.
That said, this stuff called Kaboom! kicked the shit out of my tub and tile, and the magic eraser does a bang up job on some things, and acts like a normal sponge on the rest.
kaboom is probably what ate away the galze on your tub. It sure killed our glaze. Anything really hardcore like that will do it. And once the glaze is gone it's such a pain in the ass to get to look clean, as I'm sure you know.
Nope the glaze was gone WAY before I even bought the Kaboom. Now it's the only thing that gets it somewhat clean. I cannot wait until I move, I'm so sick of my condo. My kitchen sink is the same way, if I look at it, it stains.