How to remove lime scale on toilet bowl

Denita Dunn
by Denita Dunn
I am a recent transplant to the desert. I've never had lime scale build up on a toilet bowl, so this is a first for me. I used a Pummie (brand name) stone and it worked, but...the scale comes back quickly and I'm pretty sure the stone is scratching the porcelaine. does anyone have a better idea? thanks!!

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