I have a very dirty fiberglass tub. It has a "dirty film" on it that I can scratch away with my fingernail. I've tried Tilex, Soft Scrub and even bleach. I've used rags and old bath puffs to try to clean it. Nothing works. Any suggestions on what to use to clean it and what tool I should use to try to scrub the dirt off with? Thanks!
We have well water, and often get a grimy brown ring in the toilet and it's also really hard on our fiberglass tubs and white porcelain kitchen sink. I too tried everything, with not much luck. I'd be interested in the answer too.
For our toilets my grandmother recommended Vani-Sol, which is a professional grade high acid bowl cleaner. That stuff is AMAZING and takes it right away. BUT, I did read the instructions and to find that it shouldn't be used on tubs, washbowls, and porcelain sinks...lol. Good thing I read the directions before trying it out on my sink.
Don't ask the locals for directions, they already lost one colony!