How to remove the brown stains caused by irrigating with well water?

Loues has a rustout just sprat on. And it disappears

Hi Mari, you can use CLR in a pail with brush, and use a rag to rinse it. The big thing would be to prevent it from happening, you could maybe adjust the sprinkler so it does not spray as far and hit the house, or maybe have a piece of plywood or something to shield the wall from the spray.

what walls? the house,fencing like block walls,stucco? IRON OUT

Eliminate Outdoor Rust Stains Without Harming Vegetation

a pre-mixed and ready to use liquid formula that quickly removes rust stains from concrete, vinyl and other surfaces outside the home, without scrubbing. The professional grade rust stain remover is effective on tough rust stains, yet safe on plants if used on surfaces near vegetation. This outdoor formula easily applies with a tank sprayer, cloth or roller and is ideal for removing rust stains from vinyl siding or exterior walls, concrete sidewalks, driveways, fences, outdoor equipment and many other outdoor surfaces. Iron OUT is Best on Rust!

Whink Rust Stain Remover. It works wonders! I use it regularly. Just squirt it on and the stain disappears. No elbow grease. If you prefer powder, Barkeepers Friend and a sponge does the job.