Review on Powerful Cleaning Agent: Savogran 10622 Trisodium Phosphate (TSP) 4.5lbs by Jamie Lundgren

Ideal for cleaning rough walls. I bought a foreclosure house that looked like the Hunks episode. The previous occupant smoked continuously in the house for 10 years. I tried a few other cleaning solutions before I stumbled upon a teaspoon teaspoon in my online research. This material saved the drywall in the house. Without TSP we would have had to redo all the drywall. Look at the photo of the same wall before and after. I will still be repainting all the surfaces in the house but at least now I have peace of mind that the house is clean and nothing will leak through.