Rid-O-Rust Outdoor Rust Preventer, Concentrated Formula, Prevents Stains Caused by Irrigation, 64 Fluid Ounce Bottles (4 Pack)

Hard to find product , found it here . Definitely works on rust stains

Have purchased this product many time because it really works right before your eyes.

Works as advertised. If you go on the manufacturer’s website, you can order a water test. The results will tell you how much to put in to the reservoir tank per week. Been using the product for about 10 years.

Have ordered this item many times in the years since having my own well installed. It helps prevent the rust stains on our driveway and walk Rust st

Best for removing the ugly rust stains from our sprinkler system

Item delivered directly to my door, works great in my underground sprinkler system.

Works as advertised ... very well. I ordered it regularly every few months.

Didn’t prevent rust stains at all it ruined the pain on our new house