Here is my toilet bowl BEFORE and AFTER vigorous cleanup.
Here is an interesting pattern of toilet bowl stain, naturally formed due to removal of heavy accumulation by the flow of dihydrogen monoxide (H2O).
Hard water minerals like calcium (Ca) and magnesium (Mg) react with porcelain in the toilet bowl to create buildup of minerals that can appear as BROWN, YELLOW, PINK, or ORANGE.
