Pro Products Rid O' Rust Stain Cleaner & Prevention Pack - 8 Bottles Set | Heavy Duty Rust Remover for Bathroom, Kitchen, Outdoor Tools & Metal Surfaces

This is a great value if you use both the additive for your Irragation and need the remover for when you let it run out (my bad) the remover works better than anything on the market. I have incredibly hard WELL WATER! Get a pump sprayer if you have large areas or areas that have had a bad build up. It works on metal, wood, faux lumber if you have concrete/pavers/field stone, those are very pourous surfaces so you’ll need several applications. It will ALL come up. *powerwashing along with spraying, is ideal on those kind of pourous surfaces. If you have a shower with rust stains it’ll literally melt off like magic. It’s also safe around plants, but use caution and fully wet plants/vegetation right before using to lesson any harm *if a lot of concentrate is sprayed on or near them.