Calcium, Lime & Rust Remover, Blasts Calcium, Dissolves Lime, Zaps Rust Stains, 28 Ounce Bottle (Packaging May Vary)

We applied fertilizer to our yard and some of it blew onto a joining concrete. A day or 2 later, we notice horrible rust stains on the concrete and was devastated. New home, new concrete. Searched the web and found CLR. Bought a 28 oz bottle of CLR to test what it would do. Applied nearly the entire container in an area about 2-3' x 4-5'. Put it on and scrubbed hard with a stiff garage floor broom. The directions said it had to be removed in 2 minutes so that's what I did. I then pressure washed the area and about 50% of the rust was gone. Very disappointed so I gave it another shot. This time I left it on for 3 minutes with hard scrubbing. Then pressure washed it off and I would say 98% or more of the rust is gone. Pressure washing by itself did NOTHING. If I hadn't used my pressure washer above, not sure if I would have had the same results. I have an electric SunJoe pressure washer that I've had for about 5 or more years and it still works great. Lower pressure than most gas units (2000 psi verses 3000 psi). I rate this unit better than the 2 previous gas washers I've had. NO gas to buy, less noise and my gas units just didn't hold up like my SunJoe. Disclaimer, I don't use the SunJoe that much so don't know how it would hold up with more frequent use.

Used the product to clean rust and calcium build up on toilet and calcium deposits on sinke/bathroom faucets and showerheads. IT WORKS! I should open a college appartment moveout cleaning service just for this purpose! Used this product for 3 major cleaning projects of college student bathrooms during moveout over the last 3 years in order to help them save a heafty cleaning deposit. These apartments generally do not have soft water SO rust/calcium build up is atrocious. How these kids live with the unsightly MAJOR RUST in the toilets is unfathomnable but guess they are busy getting an education, not worried about the rust/calcium buildup. Once I am finished with the bathroom, IT IS SPOTTLESS and so shiny! Every time I have completed the project, I wish I had before and after pictures. NEXT TIME FOR SURE! DIRECTIONS: Follow them. I use thick vinyl gloves in all cleaning projects. For the really really rusty/calcium build up, I dont dilute the product. Depending on how much build up of rust/calcium there is, you may need to extend the product contact time. Then, scrub using old rags, scrub brush and for those hard to get at places, an old tooth brush. Then rinse or flush. Repeat as needed. A hint: you know the product is working when you start to see it foam on the rust or calcium. THIIS PRODUCT IS AMAZING!.

Works ok if you let it soak

No complaints this stuff works don’t hesitate

I’ve used this for awhile for my sinks and toilets and works well. I was looking up where to buy this the cheapest, and found a review that talked about using it for the dishwasher. Now, I live in an old apartment so I have no control over the pipes and old dishwasher. All the dishes have a lovely hard water film over them. I bought the Lemi-Shine dishwasher boost, the dishwasher cleaners, and different detergents all with minimal results. I thought it was hopeless, and chalked it up to hard water and old pipes. Decided to give this a go. After the first cycle, looked like there was still residue so ran again. When I went in, there was a powder on the heating coil so took a towel and wholly cow so much orange residue came off. Wiped down the whole inside with CLR to make sure that like the spraying holes and all were cleaned. Then ran a empty cycle to rinse it out. I was shocked after the first set of dishes came out. I didn’t tell my boyfriend, so he said brought one of the glasses to me when he was unloading because he was shocked and confused. It worked sooooo well!! You can see in the picture on the left is one that hadn’t been run yet, and the right is after running. This is with no extra additives or special detergents either. I thought there was no hope, but this stuff is amazing!!!!!

Very effective stain removal.

It took exhaustive scrubbing to get a significant amount of hard water buildup off of a glass shower. It took so much scrubbing, in fact, that there's still hard water stains, I just don't care enough to spend any more time on it. I would dread having to continue using this product if I hadn't bought and installed a water softener, but thankfully now there isn't much in the way of buildup.

I purchase several things on Amazon and was giving pretty in-depth reviews. From this point on, here's the new agenda…. if it works as advertised, is well made, meets or exceeds the description, is a value, and arrives in a fair amount of time, it will get a "star rating" equal to what my expectations were/are. If it doesn't meet these criteria, then I will most definitely and descriptively tell the short comings of the products and you as a consumer will not have to go through the trouble of buying the product without some background knowledge. If the sell pulls that item and relists under another description, I will put the exact same review on the seller's feedback page. Sellers have done this a couple of times in the past, and I was true to my word then as well as now. DR

Productazo! Es caro pero vale la pena en mi caso planeo usarlo cada 6 meses y si se gasta bastante no es muy rendidor pero los resultados fueron muy muy buenos.

In tealta ho preso quel prodotto per smacchiare su barbie vintage macchie verdi (ossidato dalle orecchini in metallo) ma non ho ancora provato. Ma ho provato pulire vetri della doccia, segni di calcare e un ottimo resultato! Spruzzato, aspettato 1-2 min e passato panno e tutto senza nessun segno di calcare! Unica pecca che lascia un odore sgradevole (per me) tipo di curcuma, nauseante e insopportabile che mi dirava in bagno 2 giorni, ma lascio 5 stelle perché fa il suo lavoro

Why did you pick this product vs others?: Positive reviews Effectiveness: Powerful Safety: Wear mask shoes and gloves Shine: Excellent Cleaning ability: Mind blowing so fast and efficient less than an hour. Value for money: 100%

Je recommande en dilution, permet d’enlever la rouille de surface et de retrouver la peinture d’origine, avec un scotch brite, avant de passer une couche de protection.

The only thing that helped removing limestone buildup on bathroom tile. It's quite strong and pretty caustic - use goggles and face mask if you intend on working with this for longer than 5 minutes. Vapours are a bit nasty that way. But it worked, when pretty much everything I had tried before - failed. Best effect with some ceramics-grade fine steel wool.