Cobble™ Oxhide - Concentrated Sprinkler Rust Remover

Used this to remove iron stains from fertilizer left on travertine patio and can’t believe how good it worked. Great product

did not remove rust stains on white travertine from fertilizer beads even at 3 to 1 ratio and scrub brush as directed in instructions

It does remove iron stains quickly!

I was told to use this to get the iron stains from well water sprinklers off of my pavers. It got the stains off very quickly, but it did also lighten my pavers. Definitely check in a small place if you don’t want your pavers to be lightened. Otherwise it was super easy to apply. I rolled it on with a paint roller, waited 3 min, and then cleaned pavers off with water.