buildup, rust, stubborn stains and even mold growth inside your toilet bowl. According to Amaro, a good rule of thumb for a ...

Now that your toilet tank is clean, take steps to keep it that way. By minimizing rust stains and mineral deposits in the ...

Also, I have tried chlorine and other toilet-cleaning ... by mineral buildup, manganese, calcium, etc., then the acid has to have time to actually penetrate and dissolve the scale.