The Courier in Houston, Texas wrote a great article chronicling HurriClean and how well it removes stains in a toilet tank.
If your tank is not stained with mold and mildew or stained from minerals in the water and rust, this article is not for you. But if you have been frustrated with a dirty tank, Hurri Clean is definitely made for you. Hurri Clean comes packaged three bags to a box. I used one in an old toilet, and left it in for about six hours. It immediately started working. And it’s safe! Hurri Clean is made of real fruit acids and washing sodas. Hurri Clean started foaming as soon as it hit the water and six hours later, I had a white clean toilet tank. If you hate seeing stains in your tank, which leaves stains in the bowl, Hurri Clean is the answer. Hurri Clean retails for $5.99 and has three packets to each package. -The Courier Houston, Texas.