I know the old vintage Calgon formula was a blend of STPP and sodium hexametaphosphate? Anyone know the ratio? I am willing to bet Launderess would know the answer.
I searched the AW archives as well as various MSDS sites and could not find the ratio. I know SHMP is more expensive but was considering a blend of the two the next time I purchased. I know the old Calgon worked great and wanted to see if I could approximate it for curiosity sake.
I searched the AW archives as well as various MSDS sites and could not find the ratio. I know SHMP is more expensive but was considering a blend of the two the next time I purchased. I know the old Calgon worked great and wanted to see if I could approximate it for curiosity sake.