You should not have thrown it way. Contact Kodak about the problem.(posted 8505 days ago)Also check the date code. It is a number stamped on the outer plastic package of the 1L size packages. Kodak had problems with the packaging up until date code 0026 (26th week of 2000). If the packages are from prior to that, they will replace them and send you a few extra as compensation. If they are from past that they will want them to figure out if there is a problem.
Also, Xtol seems more critical of water quality. Due to hard water (well water) I mix and dilute all chemistry with distilled water. I have not had any problems, including the time I got impatient and didn't thoroughly mix the developer. I didn't notice until the film was in the wash that a reasonable amount of Part B was still in the mixing flask. The negs turned out fine.