Originally Posted by bigmac
On-Off is a very effective acid cleaner. I used it for years until I switched to Slimey Grimey (more dilute). I have found that to do just as good a job as On-Off without the need for protective gear, damage to the trailer, damage to aluminum (windshield frame), or etching of the concrete.
I'll have to give that one a try next year. Thanks for the info bigmac.