*BEST* 'RV Toilet Cleaner'! Yellow finally OUT!
"Had tried a lot of products including soaking vinegar and baking soda (for a week-while away) and scrubbing endlessly. It helped a bit, although it still left lots of yellowing. Was disgusted with our bowls look and loosing 'all' hope. Decided to give one last product a try (yours) and it was AMAZING - our bowl is white again. Sprayed the bowl and let it sit for a few hours, while scrubbing every once in a while. After a few hours of it sitting in the bowl, and some occasional scrubbing. . . it removed ALL the yellow. I am beyond pleased with this product, having a white bowl again, and HIGHLY RECOMMEND IT! A MUST TRY!"