[VTenigma]

TSP that you buy at Home Depot now is phosphate free TSP

[dennisw]

http://www.homedepot.com/webapp/wcs/stores/servlet/Search?keyword=tsp&selectedCatgry=SEARCH+ALL&langId=-1&storeId=10051&catalogId=10053&Ntpc=1&Ntpr=1

Home Depot has the real TSP tri-sodium phosphate and the substitute kind (eco friendly who knows?)