Rust can be tricky because you can not remove it with just plain soap and water. The strongest alkaline based detergents in the world and hours of scrubbing will not do anything more than destroy the carpet that underlies that annoying rust stain. There is an easier way and it doesn’t have to be so hard. Here’s how…
To understand how to remove rust you need to know the simple solution to rust removal – that’s acid. Don’t get to excited about the word acid. We eat acidic things all of the time – citrus acid for example. In fact, nearly all foods that we eat are acidic. We’ll start our rust stain removal with a mild remedy and work our way up to slightly more aggressive remedies. We’ll begin with lemons. Lemons are obviously acidic and will work great on most rust stains. I want you to follow the regular cleaning methods when applying all of these methods. To be clear on this, be sure to always apply solution, agitate with a metal spoon, rinse with cold water, and blot dry. After applying the lemon liberally onto the rust, agitate the lemon into the carpet fibers with a metal spoon. Let the lemon sit for one hour. Then rinse and dry.
If the rust stain remains, try cream of tarter. Mix the cram of tarter with a little bit of water to create a paste. Do not dilute the cream of tarter too much with water. We are looking for a fairly paste-like consistency. Apply, agitate using a metal spoon, and let sit for one hour. Rinse and dry.
Still no luck? Switch over to vinegar. I know it smells but I’ll give you an easy remedy to get rid of the odor. Proceed to complete the same process as you did with both the lemon and the cream of tarter until you are successful with complete rust removal. Then throw on some baking soda to neutralize the acidity of the vinegar. The odor will be gone, hopefully along with the rust stain.