Once identified, these areas can be cleaned with Trisodium Phosphate (TSP). TSP is one of the best pet stain removers, helping to break down urine directly by binding with the urine, leaving ...

You can’t scrub oil and grease stains away. The trick is to draw them up out of the concrete with trisodium phosphate (or a TSP substitute), water and an absorbent material. Patience is the key.