On Sun, 21 Feb 1999, Dave Terrick wrote:
> Tri Sodium Phosphate (T.S.P) is one of the nastiest grease removers
known to
> man. Often only a tbsp per gallon is needed for wall washing, etc.
>
> In high concentrations it is designed for such duties as floor grease. Wet
> down with the main mix, then slop some crystals straight on. An hour with
> the occasional scrubbing will get enough of the grease out that you can even
> paint over it.
I use a stable broom to scrub TSP onto concrete. (Apply TSP, apply
water, scrub. Lather, rinse, repeat). And I wear rubber boots. Worked
real nice on the big oil slick my brother made on the sidewalk, although
you could still tell where it happened due to the *really* clean spot ;-)
-Malcolm
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