Trisodium Phosphate 99% Purity/TSP (1 LB Poly Bag)

Worked well

First... This is Tri-Sodium-PHOSPHATE. My local home store only sells "TSP - Phosphate Free". Phosphate free TSP, is the usual marketing nonsense. If it is phosphate free, it is not TSP. This is real TSP. Used for years as a prep for painting, algae remover, heavy duty cleaner. It needs respect, but does not need to be replaced. Here are some rules. Do NOT breath the dust. Do NOT get it in your eyes. Do not leave it on your skin, (rinse it off). Do not dump it in a sewer or drain system. Do not contaminate surface fresh water with it. If the spray ends up on the ground it will eventually convert to fertilizer. My six pounds came in a sturdy polymer bag. I only gave it 4 stars because it is lumpy. The lumps will dissolve when you mix it in water, but the lumps make pouring and measuring more difficult. Previous TSP I have bought from other suppliers, was a "free flowing powder". Too expensive these days, but there is a politically arranged phosphate shortage, so what can you say?

but it looks good

Not sure what is actually in this. It does not perform like any other TSP that I have bought in the past 35 years.Something is wrong with it.