8" x 2" stone in box marked 1896 -- what is it?

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Originally Posted by eKretz

I use concentrated Simple Green for stone cleaning. It will turn Washitas white if they were originally white. I've tried TSP as well but it doesn't do as well in my experience. Enjoy the stone, looks great.

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TSP trademark is no longer truly Trisodium Phosphate. It is a detergent masquerading as a great cleaner. Thanks to our Government....
~Richard

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Originally Posted by Geezer

TSP trademark is no longer truly Trisodium Phosphate. It is a detergent masquerading as a great cleaner. Thanks to our Government....
~Richard

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Richard, I was about to say, "Why I could never be fooled into buying fake TSP, and I bought this stuff more than ten years ago so I'm sure it's real." But I figured I'd check first and... sure enough, you were completely right, it's sodium metasilicate.

I ordered some real honest-to-goodness TSP from Amazon.