Rust Out Water Softener Cleaner – Removes Rust Buildup -- Maintains Softener Performance – Removes Iron – Enhances Softener Performance – Cleans Fouled Resin – Extends Softener Life, Original - 1 Pack, 1.375 lbs. (RO12N)

This product is the best of the rust removers. My water has a lot of iron in it, and I did not know my water treatment system was not working properly. I thought I had ruined a brand new white quilt and sheets when they were laundered with the very rusty water. They came out yellow. I first tried Whink, which I've used for years, but had no luck. Then I tried Iron Out unsuccessfully. The water system repair guy told me Rust Out was the best, and he was right! My new quilt and new sheets are now white again. LOVE this product and won't bother to go back to using Whink.

This stuff is great!We have enough iron in our water that it turns my hair orange in the shower (my hair is blondish). It stains the shower yellow and we get that nasty sulfur smell coming out of the pipes when the washer runs (from iron-fixing bacteria - bacteria that uses iron as an energy source and excretes sulfurous compounds - that's right, that smell if bacterial farts). The tubes coming out of the water softener containing water that should be treated and have little to no insoluble iron were stained yellow. That disappeared and became clear after the softener cycled a couple times with this stuff mixed in. The sulfur smell of microscopic toots vanished. I didn't notice any new staining.I didn't seem to need to use as much as it instructs to (especially for washing dishes/laundry in our second place which has no water softener). I quartered to halved the amount recommended for dishes/laundry.As others have mentioned, you do NOT want to breathe the dust that comes from pouring it. It's really bad (even with a dust mask on). I'm going to try putting it into a container where I can scoop it out instead of pour, so there's less dust.Also, its REACTIVE, so be careful. The instructions say to mix it with cold water (and don't warn about the reactivity) to pour into the water softener. Even though I used bottled water (thinking it wouldn't react to that), It turned into a bit of a volcano and overflowed my container. The overflow was partially dissolved crystals which stained my wood finish. So if you are mixing it, use a large container or a pail on a surface that won't stain (it was fine on granite and in the sink).

Not a difference right off, but has improved our well water over time. First time I used it I poured directly into the resin well. Then layered in the brine bed as we add pellets. Noticed difference after about 3 weeks, 8 weeks even better. We have well water with iron in it, always used iron out salt pellets but over the past year the water acquired a unpleasant smell. Wasn't sure if our water had changed or our older water softener was wearing out, whichever, this product has helped.

This product does exactly what it says it does. It removes rust and rust stains very quickly. To wash the walls of a shower that has rust on it simply put some granules on a wet sponge and rub it on the shower stall walls. Leave it on for 15 minutes. For rust stains that around the upper rim of your toilet use the gel form of this product, made by the same company. You simply flush the toilet, turn off the water spigot so no water runs into the toilet and squirt the get form of this product up under the rim. Leave on for about 20 minutes. Caution: do not use the dry granule form and the gel form together, they cause toxic fumes that burn your eyes. You can't even stay near the room, the combination causes a chemical reaction. Otherwise, I simply use the two products separately, they both work like a charm.

I used Rust Out Water Softener Cleaner for the first time. I'm happy with the results. I can tell that it made a big difference right away. It was easy to use. The instructions were clear and I had no problems. Some reviewer have reported an odd blue color and bad smell, but I didn't have any negative odor or visuals. I would recommend it.

You can't breath when you use this product.. nasty nasty nasty. but it got the rust out of my water softener. Impressed but it was a little scary to use. If you don't have much rust go for the ResCare RK41N to clean your softener. Mine was way too dirty this time. one treatment cleaned everything. I had to flush my system 3 times to get the smell out of the water, but it was worth it for the cleaning it did to my system. My porcelain looks like new again.

I bought this product to remove the iron from my softened water. I followed the directions included with my RV water softener and voila, no more rust stains in the sink and toilet!

Easy to use and made my water softner work so much better.