If you use bleach on a porclin tub it will cause a rust stain. To remove the brown spots soak it with regular household peroxide. Try never to allow bleach products such as tilex, or other mold cleaners near the tub. Clr is ok as is clorox2 to clean your tub. Good luck!

I'm not sure if I'd want those chemicals near a fruit producing tree (I'm assuming that we're talking about an edible fig tree). The easiest way I've found to remove bothersome ants is to find the ant trail and sprinkle a little borax (boric acid I believe) on the trail. They will track it back to the nest and it will kill the nest. I wouldn't do it under the drip line if at all possible and use gloves when handling, but borax is generally considered safe in small doses. Tanglefoot spread over masking tape will keep ants from climbing the tree and is another option, but would need to be reapplied every now and then.

That is really terrible for it to have corroded in that manner after a relatively short period of time. When I remodeled, the metal had corroded on the shower frame but that was on a metal frame that had been installed in 1965. I would attempt to get some kind of refund from Home Depot because it is not "normal" for any metal to perform so poorly when it is being used in the manner for which it is intended. With consumer goods there is always a warranty of merchantability which means that the item is "fit" to be sold. In terms of replacing it, I agree that the best way to proceed is to get a higher quality product which should not become pitted. I recently remodeled and had Showerguard glass used and I have absolutely no streaking or film and I do NOT squeegee or dry after each shower. Since you have no protection you should first get the scum off the glass - I would imagine there are glass cleaners that would completely get the scum off. After it is clean you are going to need to squeegee the shower each time it is used. You should also ONLY use liquid shower soap as bar soaps have ingredients that cause scum to build up versus liquid shower which doesn't cause scum especially when you squeegee to get rid of anything that might streak.

What is the stainless you want to remove rust from? A refrigertor, tools or what? Picture would help.