Iron Out Powder Rust Stain Remover, Remove and Prevent Rust Stains in Bathrooms, Kitchens, Appliances, Laundry, and Outdoors, 9.5 Pound

Really, really worked. Most of the rust came off first time from the toilet and just went over it again to take off the last traces.

Excellent product...will buy again

Worked brilliantly wit minimal effort. Probably terrible for environment

Good product worked well

I’ve tried several rust removers over the years, including the more expensive leading brand, and this one performs just as well—if not better—at a noticeably better price point. Living in Florida, iron and rust are constant issues. I use this regularly in my water softener pre-filter system to manage iron buildup, and it does an excellent job breaking down residue without excessive scrubbing. It’s also been very effective in toilets where iron staining can get stubborn quickly. One area where it really impressed me was around the pool deck. We had rust stains forming from metal screws in paver areas, and this removed the discoloration without damaging the surrounding surface. I’ve even used it carefully on antique piano hardware and metal components, and it cleaned oxidation without being overly harsh when properly diluted and monitored. A few notes for best results: Follow the dilution instructions. Ventilate well (it has a strong odor). Test on delicate surfaces first. Overall, this has become my go-to rust treatment product. Excellent performance, versatile applications, and better value than the big-name alternative. Highly recommend.

We just moved to a new house on well water… and let me tell you, I was NOT prepared for iron. At some point, my husband ran 3 full loads of brand-new white bathrobes and towels for our Airbnb. No one realized what was happening… until everything came out orange. Not slightly off-white — fully stained. About $400 worth of laundry. Brand new. We had never dealt with iron before (always had city water), so we didn’t even understand what it was. We tried everything: vinegar, baking soda, tons of bleach (of course), soaking items in the bathtub for hours and hours. Nothing worked. At that point — we were honestly desperate. Then we found Iron Out. And I don’t say this lightly — it felt like a miracle. Everything came back crisp white, like nothing ever happened. I couldn’t believe it. After that, we started testing it on other problem areas… • 40-year-old shower tile grout with ugly reddish stains — gone • Toilet bowls with iron buildup — just add, let it sit, wipe… no scrubbing It just works. The only thing to note: wear a mask (like N95) when using the powder — it’s very fine and you don’t want to inhale it. But honestly? This product saved our linens, saved us money, and now it’s something I always keep on hand. Absolute must-have if you have well water.

Good product, helps to clean well

Great stuff! It saved a toilet in my son's house. The toilet was rust stained, a gray and rust stain. His MIL had tried many things to clean this toilet. No luck. I poured some of this in, and the water roiled as it worked. Very cool! An hour later, I checked and it was mostly white. Just at the bottom it had gray scratch marks. Later, he poured a bit more in, and must have scrubbed it, as when I saw it next, it was all white. It's so easy! Pour it in and it cleans it. At my house, we have rusty water. We have a water softener that gives us clean water, but the house was empty for months and the toilet upstairs was seriously rust stained. I tried a pumice stone, and Barkeeper's Friend, and something else. None of those worked. But this stuff got it white. I just remembered something else. You want this is bit above the water line, so flush toilet, then line along water line with toilet paper, then sprinkle Iron Out on the moist toilet paper. Come back in an hour and expect a clean toilet bowl. Update: Today I added spray iron out, great addition! I got most of the bowl clean using above methods--flush toilet, lay toilet paper above water line, sprinkle in Iron Out, scoop some of it up onto toilet paper. Wait overnight. Flush. I was left with rust stains high in the bowl. I sprayed Iron Out in that area and scrubbed with a heavy duty green sponge. The rust stains came off! You can get under the rim with your sponge too. There are some excellent videos on YouTube about Iron Out taking on dirty toilets. I like my method better because: I did not shut off water I did not plunge I did not fill bowl with hot water--which can crack your toilet bowl. Hurray for all of us for getting rust stained toilets white again.

That is the best for iron in toilets water. Dissolves the rust immediately. Have also used it on white clothes for iron stains. You have to monitor otherwise the decorative colors will be faded out. Best product on the market.