Makes quick work of limescale ring!
Very effective.  I have treated yet still hard water. Something would knock the regenerator out and I would have that calcification ring in the toilet bowl. The problem is mainly on one side of the house, the master bedroom commodes. I have a two Totos and they warn against harsh abrasives.<br />Plus I have managed to break both wrists by 70 and that unsightly line at the water level drove me nuts. This pumice bar has a long enough handle and was easier to use than what I tried in the past, a foot pumice stone and the Shaws Pads with the short skinny handle.
Rating: 5 stars