I have a couple of older water buckets just sitting around, and overall, they are in really great shape - they're just really dirty. They have that (what seems like permanent) mud stain/coating on the inside that's nearly impossible to get off. I've tried everything from bleach to regular dish soap to Oxyclean to Mr. Clean Magic Eraser. NOTHING works. I can scrap some off with my fingernails, but I don't feel like scraping 4 entire buckets with my fingernails :)
Just wondering if anybody else came across this, and if there was a MUCH quicker and more effective way of doing this :) Thanks!