Robin asked: How do I clean rust off a driveway through a sprinkler system; not through a water softener system, but through a sprinkler head. I don’t want to hurt the grass, and I have rust on my driveway.
Rust stains are commonly left behind when untreated well water feeds sprinklers or other types of irrigation systems. These deep brown or rust-colored hues are caused by the iron content in the water. Although they are not harmful, they can be unsightly, and getting rid of them without killing nearby vegetation can be a challenge. Fortunately, there’s a product made to do the job.
You Will Need:
- Concrete Rust Remover (Find in your local home improvement store)
- Stir stick (like those used for paint)
- Paint or scrub brush
Steps to Remove the Rust Stains:
- First, ensure the entire area is clean and free of loose dirt or debris.
- Use the bucket to mix Concrete Rust Remover and water as directed. If you don’t need the whole bucket (which treats approximately 60 square feet), you can mix at a ratio of 3 tablespoons of powder for each cup of water used.
- Stir to mix. A clear gel will form.
- Use the brush to apply the gel directly to the stains.
- Wait 15 minutes or until the stain fades.
- Rinse with water.
- Repeat if needed for more severe stains.
Additional Tips and Advice
- Spot test in a hidden area before you begin.
- Only mix as much Concrete Rust Remover as you need. Prepared gel loses its effectiveness after a few hours.
- Concrete Rust Remover will not harm plants, including grass. It’s biodegradable and does not contain phosphates.