Grimey toilet stains are quite unsightly. Luckily, there is one common cleaning powder that will remove the toughest of stains in no time: Ajax Powder Cleanser.
Ajax contains bleach to disinfect the bowl, sodium carbonate to soften the water and remove dirt, and the powder form works as a mild abrasive to remove buildup.
Ajax can remove everything from grime to mineral build-up to rust. To remove stains from your bowl, flush the toilet to wet it and then coat it with a thick layer of Ajax.
Allow the product to sit for a few minutes to soften and loosen the grime, and then use your toilet bowl brush to scrub it clean. If you have difficult stains, use a bristle brush.