This fence has been getting hit by a well water sprinkler for years. Is there any way to get those rust marks off? Would F9 be the best option to try first?
F9 would definitely work but its pricey. You could probably get away with using OX acid on this one
Muritac acid
Absolutely do not use muratic acid! Use white ox
$6 and 3 minutes you’ll have a new looking fence with muritacc
So something like this would be good in your opinion? Would you mix it with water?
Just go to your local hardware store. I buy the 31% hydrochloric acid strength and mix one gallon of muratic to half gallon water. Wear a respirator and long sleeves/gloves. Use pump up
Just following up that I washed this fence finally. I tried Oxalic acid first and it lightened it up some, but that’s about it. Ended up getting Muriatic acid and used a 1-to-1 acid to water ratio and it took a couple applications but it removed the rust. I noticed you used a 2-to-1 ratio, so I’ll try that next time and it will probably only take one application. Thanks again for the advice!