The two things that are the biggest waste of money are bleach tablets and blue dye cleaners.These two products are the worst thing in the world for your toilet bowl, because they don't work. The number one thing that bleach tablets do are ruIn the inside rubber parts inside your tank. They are too highly concentrated, and stay in one place for too long a period. They will dissolve the integrity of your flapper and other parts. In my opinion of the past 35 years of repairing plumbing bleach ...